Home / 14,870.79-20,529.45-11,686.14

Finding the Fourth Proportional to 14,870.79, 20,529.45 and 11,686.14

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Solution

The fourth proportional to 14,870.79, 20,529.45 and 11,686.14 is: 16,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.79 : 20,529.45 = 11,686.14 : x
  2. Step 2: Convert to fraction form
    14,870.79/20,529.45 = 11,686.14/x
  3. Step 3: Cross multiply
    14,870.79x = 20,529.45 × 11,686.14
  4. Step 4: Simplify right side
    14,870.79x = 239,910,026.82
  5. Step 5: Solve for x
    x = 239,910,026.82/14,870.79
  6. Step 6: Final answer
    x = 16,132.97

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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.