Home / 15,487.22-21,382.31-10,650

Finding the Fourth Proportional to 15,487.22, 21,382.31 and 10,650

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Solution

The fourth proportional to 15,487.22, 21,382.31 and 10,650 is: 14,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.22 : 21,382.31 = 10,650 : x
  2. Step 2: Convert to fraction form
    15,487.22/21,382.31 = 10,650/x
  3. Step 3: Cross multiply
    15,487.22x = 21,382.31 × 10,650
  4. Step 4: Simplify right side
    15,487.22x = 227,721,601.50
  5. Step 5: Solve for x
    x = 227,721,601.50/15,487.22
  6. Step 6: Final answer
    x = 14,703.84

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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.