Home / 15,539.32-21,444.25-8,465.74

Finding the Fourth Proportional to 15,539.32, 21,444.25 and 8,465.74

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Solution

The fourth proportional to 15,539.32, 21,444.25 and 8,465.74 is: 11,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.32 : 21,444.25 = 8,465.74 : x
  2. Step 2: Convert to fraction form
    15,539.32/21,444.25 = 8,465.74/x
  3. Step 3: Cross multiply
    15,539.32x = 21,444.25 × 8,465.74
  4. Step 4: Simplify right side
    15,539.32x = 181,541,445.00
  5. Step 5: Solve for x
    x = 181,541,445.00/15,539.32
  6. Step 6: Final answer
    x = 11,682.71

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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.