Home / 9,118.04-12,586.02-5,342.42

Finding the Fourth Proportional to 9,118.04, 12,586.02 and 5,342.42

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Solution

The fourth proportional to 9,118.04, 12,586.02 and 5,342.42 is: 7,374.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.04 : 12,586.02 = 5,342.42 : x
  2. Step 2: Convert to fraction form
    9,118.04/12,586.02 = 5,342.42/x
  3. Step 3: Cross multiply
    9,118.04x = 12,586.02 × 5,342.42
  4. Step 4: Simplify right side
    9,118.04x = 67,239,804.97
  5. Step 5: Solve for x
    x = 67,239,804.97/9,118.04
  6. Step 6: Final answer
    x = 7,374.37

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.