Home / 14,780.87-20,384.30-9,474.66

Finding the Fourth Proportional to 14,780.87, 20,384.30 and 9,474.66

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Solution

The fourth proportional to 14,780.87, 20,384.30 and 9,474.66 is: 13,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.87 : 20,384.30 = 9,474.66 : x
  2. Step 2: Convert to fraction form
    14,780.87/20,384.30 = 9,474.66/x
  3. Step 3: Cross multiply
    14,780.87x = 20,384.30 × 9,474.66
  4. Step 4: Simplify right side
    14,780.87x = 193,134,264.46
  5. Step 5: Solve for x
    x = 193,134,264.46/14,780.87
  6. Step 6: Final answer
    x = 13,066.51

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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.