Home / 13,407.58-18,502.17-7,439.19

Finding the Fourth Proportional to 13,407.58, 18,502.17 and 7,439.19

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Solution

The fourth proportional to 13,407.58, 18,502.17 and 7,439.19 is: 10,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.58 : 18,502.17 = 7,439.19 : x
  2. Step 2: Convert to fraction form
    13,407.58/18,502.17 = 7,439.19/x
  3. Step 3: Cross multiply
    13,407.58x = 18,502.17 × 7,439.19
  4. Step 4: Simplify right side
    13,407.58x = 137,641,206.68
  5. Step 5: Solve for x
    x = 137,641,206.68/13,407.58
  6. Step 6: Final answer
    x = 10,265.93

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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.