Home / 15,444.80-21,314.10-10,665.73

Finding the Fourth Proportional to 15,444.80, 21,314.10 and 10,665.73

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Solution

The fourth proportional to 15,444.80, 21,314.10 and 10,665.73 is: 14,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.80 : 21,314.10 = 10,665.73 : x
  2. Step 2: Convert to fraction form
    15,444.80/21,314.10 = 10,665.73/x
  3. Step 3: Cross multiply
    15,444.80x = 21,314.10 × 10,665.73
  4. Step 4: Simplify right side
    15,444.80x = 227,330,435.79
  5. Step 5: Solve for x
    x = 227,330,435.79/15,444.80
  6. Step 6: Final answer
    x = 14,718.90

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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.