Home / 15,610.23-21,539.61-9,643.86

Finding the Fourth Proportional to 15,610.23, 21,539.61 and 9,643.86

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Solution

The fourth proportional to 15,610.23, 21,539.61 and 9,643.86 is: 13,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.23 : 21,539.61 = 9,643.86 : x
  2. Step 2: Convert to fraction form
    15,610.23/21,539.61 = 9,643.86/x
  3. Step 3: Cross multiply
    15,610.23x = 21,539.61 × 9,643.86
  4. Step 4: Simplify right side
    15,610.23x = 207,724,983.29
  5. Step 5: Solve for x
    x = 207,724,983.29/15,610.23
  6. Step 6: Final answer
    x = 13,306.98

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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.