Home / 13,397.27-18,493.02-9,145.29

Finding the Fourth Proportional to 13,397.27, 18,493.02 and 9,145.29

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Solution

The fourth proportional to 13,397.27, 18,493.02 and 9,145.29 is: 12,623.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.27 : 18,493.02 = 9,145.29 : x
  2. Step 2: Convert to fraction form
    13,397.27/18,493.02 = 9,145.29/x
  3. Step 3: Cross multiply
    13,397.27x = 18,493.02 × 9,145.29
  4. Step 4: Simplify right side
    13,397.27x = 169,124,030.88
  5. Step 5: Solve for x
    x = 169,124,030.88/13,397.27
  6. Step 6: Final answer
    x = 12,623.77

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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.