Home / 15,473.80-21,354.60-8,759.08

Finding the Fourth Proportional to 15,473.80, 21,354.60 and 8,759.08

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Solution

The fourth proportional to 15,473.80, 21,354.60 and 8,759.08 is: 12,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.80 : 21,354.60 = 8,759.08 : x
  2. Step 2: Convert to fraction form
    15,473.80/21,354.60 = 8,759.08/x
  3. Step 3: Cross multiply
    15,473.80x = 21,354.60 × 8,759.08
  4. Step 4: Simplify right side
    15,473.80x = 187,046,649.77
  5. Step 5: Solve for x
    x = 187,046,649.77/15,473.80
  6. Step 6: Final answer
    x = 12,087.96

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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.