Home / 13,407.26-18,502.16-7,439.31

Finding the Fourth Proportional to 13,407.26, 18,502.16 and 7,439.31

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Solution

The fourth proportional to 13,407.26, 18,502.16 and 7,439.31 is: 10,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.26 : 18,502.16 = 7,439.31 : x
  2. Step 2: Convert to fraction form
    13,407.26/18,502.16 = 7,439.31/x
  3. Step 3: Cross multiply
    13,407.26x = 18,502.16 × 7,439.31
  4. Step 4: Simplify right side
    13,407.26x = 137,643,266.71
  5. Step 5: Solve for x
    x = 137,643,266.71/13,407.26
  6. Step 6: Final answer
    x = 10,266.33

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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.