Home / 15,525.32-21,425.04-8,451.74

Finding the Fourth Proportional to 15,525.32, 21,425.04 and 8,451.74

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Solution

The fourth proportional to 15,525.32, 21,425.04 and 8,451.74 is: 11,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.32 : 21,425.04 = 8,451.74 : x
  2. Step 2: Convert to fraction form
    15,525.32/21,425.04 = 8,451.74/x
  3. Step 3: Cross multiply
    15,525.32x = 21,425.04 × 8,451.74
  4. Step 4: Simplify right side
    15,525.32x = 181,078,867.57
  5. Step 5: Solve for x
    x = 181,078,867.57/15,525.32
  6. Step 6: Final answer
    x = 11,663.45

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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.