Home / 9,055.20-12,477.44-7,279.68

Finding the Fourth Proportional to 9,055.20, 12,477.44 and 7,279.68

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Solution

The fourth proportional to 9,055.20, 12,477.44 and 7,279.68 is: 10,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,055.20 : 12,477.44 = 7,279.68 : x
  2. Step 2: Convert to fraction form
    9,055.20/12,477.44 = 7,279.68/x
  3. Step 3: Cross multiply
    9,055.20x = 12,477.44 × 7,279.68
  4. Step 4: Simplify right side
    9,055.20x = 90,831,770.42
  5. Step 5: Solve for x
    x = 90,831,770.42/9,055.20
  6. Step 6: Final answer
    x = 10,030.90

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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.