Home / 13,337.72-18,407.13-7,369.91

Finding the Fourth Proportional to 13,337.72, 18,407.13 and 7,369.91

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Solution

The fourth proportional to 13,337.72, 18,407.13 and 7,369.91 is: 10,171.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.72 : 18,407.13 = 7,369.91 : x
  2. Step 2: Convert to fraction form
    13,337.72/18,407.13 = 7,369.91/x
  3. Step 3: Cross multiply
    13,337.72x = 18,407.13 × 7,369.91
  4. Step 4: Simplify right side
    13,337.72x = 135,658,891.46
  5. Step 5: Solve for x
    x = 135,658,891.46/13,337.72
  6. Step 6: Final answer
    x = 10,171.07

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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.