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Finding the Fourth Proportional to 6,118.79, 9,178.19 and 5,807.15

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Solution

The fourth proportional to 6,118.79, 9,178.19 and 5,807.15 is: 8,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.79 : 9,178.19 = 5,807.15 : x
  2. Step 2: Convert to fraction form
    6,118.79/9,178.19 = 5,807.15/x
  3. Step 3: Cross multiply
    6,118.79x = 9,178.19 × 5,807.15
  4. Step 4: Simplify right side
    6,118.79x = 53,299,126.06
  5. Step 5: Solve for x
    x = 53,299,126.06/6,118.79
  6. Step 6: Final answer
    x = 8,710.73

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.