Home / 13,407.62-18,502.51-7,439.33

Finding the Fourth Proportional to 13,407.62, 18,502.51 and 7,439.33

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Solution

The fourth proportional to 13,407.62, 18,502.51 and 7,439.33 is: 10,266.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.62 : 18,502.51 = 7,439.33 : x
  2. Step 2: Convert to fraction form
    13,407.62/18,502.51 = 7,439.33/x
  3. Step 3: Cross multiply
    13,407.62x = 18,502.51 × 7,439.33
  4. Step 4: Simplify right side
    13,407.62x = 137,646,166.61
  5. Step 5: Solve for x
    x = 137,646,166.61/13,407.62
  6. Step 6: Final answer
    x = 10,266.27

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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.