Home / 15,280.38-21,080.23-10,807.96

Finding the Fourth Proportional to 15,280.38, 21,080.23 and 10,807.96

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Solution

The fourth proportional to 15,280.38, 21,080.23 and 10,807.96 is: 14,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.38 : 21,080.23 = 10,807.96 : x
  2. Step 2: Convert to fraction form
    15,280.38/21,080.23 = 10,807.96/x
  3. Step 3: Cross multiply
    15,280.38x = 21,080.23 × 10,807.96
  4. Step 4: Simplify right side
    15,280.38x = 227,834,282.63
  5. Step 5: Solve for x
    x = 227,834,282.63/15,280.38
  6. Step 6: Final answer
    x = 14,910.25

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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.