Home / 11,437.46-15,789.05-8,605.90

Finding the Fourth Proportional to 11,437.46, 15,789.05 and 8,605.90

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Solution

The fourth proportional to 11,437.46, 15,789.05 and 8,605.90 is: 11,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.46 : 15,789.05 = 8,605.90 : x
  2. Step 2: Convert to fraction form
    11,437.46/15,789.05 = 8,605.90/x
  3. Step 3: Cross multiply
    11,437.46x = 15,789.05 × 8,605.90
  4. Step 4: Simplify right side
    11,437.46x = 135,878,967.44
  5. Step 5: Solve for x
    x = 135,878,967.44/11,437.46
  6. Step 6: Final answer
    x = 11,880.17

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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.