Home / 13,237.59-18,242.61-12,994.39

Finding the Fourth Proportional to 13,237.59, 18,242.61 and 12,994.39

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Solution

The fourth proportional to 13,237.59, 18,242.61 and 12,994.39 is: 17,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.59 : 18,242.61 = 12,994.39 : x
  2. Step 2: Convert to fraction form
    13,237.59/18,242.61 = 12,994.39/x
  3. Step 3: Cross multiply
    13,237.59x = 18,242.61 × 12,994.39
  4. Step 4: Simplify right side
    13,237.59x = 237,051,694.70
  5. Step 5: Solve for x
    x = 237,051,694.70/13,237.59
  6. Step 6: Final answer
    x = 17,907.47

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.