Home / 13,252.30-18,288.59-7,587.07

Finding the Fourth Proportional to 13,252.30, 18,288.59 and 7,587.07

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Solution

The fourth proportional to 13,252.30, 18,288.59 and 7,587.07 is: 10,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.30 : 18,288.59 = 7,587.07 : x
  2. Step 2: Convert to fraction form
    13,252.30/18,288.59 = 7,587.07/x
  3. Step 3: Cross multiply
    13,252.30x = 18,288.59 × 7,587.07
  4. Step 4: Simplify right side
    13,252.30x = 138,756,728.87
  5. Step 5: Solve for x
    x = 138,756,728.87/13,252.30
  6. Step 6: Final answer
    x = 10,470.39

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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.