Home / 18,937.89-26,134.31-11,384.30

Finding the Fourth Proportional to 18,937.89, 26,134.31 and 11,384.30

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Solution

The fourth proportional to 18,937.89, 26,134.31 and 11,384.30 is: 15,710.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.89 : 26,134.31 = 11,384.30 : x
  2. Step 2: Convert to fraction form
    18,937.89/26,134.31 = 11,384.30/x
  3. Step 3: Cross multiply
    18,937.89x = 26,134.31 × 11,384.30
  4. Step 4: Simplify right side
    18,937.89x = 297,520,919.13
  5. Step 5: Solve for x
    x = 297,520,919.13/18,937.89
  6. Step 6: Final answer
    x = 15,710.35

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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.