Home / 13,220.69-18,244.52-7,252.45

Finding the Fourth Proportional to 13,220.69, 18,244.52 and 7,252.45

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Solution

The fourth proportional to 13,220.69, 18,244.52 and 7,252.45 is: 10,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.69 : 18,244.52 = 7,252.45 : x
  2. Step 2: Convert to fraction form
    13,220.69/18,244.52 = 7,252.45/x
  3. Step 3: Cross multiply
    13,220.69x = 18,244.52 × 7,252.45
  4. Step 4: Simplify right side
    13,220.69x = 132,317,341.59
  5. Step 5: Solve for x
    x = 132,317,341.59/13,220.69
  6. Step 6: Final answer
    x = 10,008.35

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Half scale
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Double scale
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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.