Home / 9,090.39-12,543.21-5,056.68

Finding the Fourth Proportional to 9,090.39, 12,543.21 and 5,056.68

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Solution

The fourth proportional to 9,090.39, 12,543.21 and 5,056.68 is: 6,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.39 : 12,543.21 = 5,056.68 : x
  2. Step 2: Convert to fraction form
    9,090.39/12,543.21 = 5,056.68/x
  3. Step 3: Cross multiply
    9,090.39x = 12,543.21 × 5,056.68
  4. Step 4: Simplify right side
    9,090.39x = 63,427,010.15
  5. Step 5: Solve for x
    x = 63,427,010.15/9,090.39
  6. Step 6: Final answer
    x = 6,977.37

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Half scale
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Double scale
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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.