Home / 13,470.68-18,587.30-7,502.19

Finding the Fourth Proportional to 13,470.68, 18,587.30 and 7,502.19

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Solution

The fourth proportional to 13,470.68, 18,587.30 and 7,502.19 is: 10,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.68 : 18,587.30 = 7,502.19 : x
  2. Step 2: Convert to fraction form
    13,470.68/18,587.30 = 7,502.19/x
  3. Step 3: Cross multiply
    13,470.68x = 18,587.30 × 7,502.19
  4. Step 4: Simplify right side
    13,470.68x = 139,445,418.68
  5. Step 5: Solve for x
    x = 139,445,418.68/13,470.68
  6. Step 6: Final answer
    x = 10,351.78

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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.