Home / 15,108.28-20,848.82-8,394.32

Finding the Fourth Proportional to 15,108.28, 20,848.82 and 8,394.32

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Solution

The fourth proportional to 15,108.28, 20,848.82 and 8,394.32 is: 11,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.28 : 20,848.82 = 8,394.32 : x
  2. Step 2: Convert to fraction form
    15,108.28/20,848.82 = 8,394.32/x
  3. Step 3: Cross multiply
    15,108.28x = 20,848.82 × 8,394.32
  4. Step 4: Simplify right side
    15,108.28x = 175,011,666.70
  5. Step 5: Solve for x
    x = 175,011,666.70/15,108.28
  6. Step 6: Final answer
    x = 11,583.82

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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.