Home / 9,130.44-12,600.12-5,355.72

Finding the Fourth Proportional to 9,130.44, 12,600.12 and 5,355.72

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Solution

The fourth proportional to 9,130.44, 12,600.12 and 5,355.72 is: 7,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.44 : 12,600.12 = 5,355.72 : x
  2. Step 2: Convert to fraction form
    9,130.44/12,600.12 = 5,355.72/x
  3. Step 3: Cross multiply
    9,130.44x = 12,600.12 × 5,355.72
  4. Step 4: Simplify right side
    9,130.44x = 67,482,714.69
  5. Step 5: Solve for x
    x = 67,482,714.69/9,130.44
  6. Step 6: Final answer
    x = 7,390.96

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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.