Home / 9,155.13-12,621.85-7,272.96

Finding the Fourth Proportional to 9,155.13, 12,621.85 and 7,272.96

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Solution

The fourth proportional to 9,155.13, 12,621.85 and 7,272.96 is: 10,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.13 : 12,621.85 = 7,272.96 : x
  2. Step 2: Convert to fraction form
    9,155.13/12,621.85 = 7,272.96/x
  3. Step 3: Cross multiply
    9,155.13x = 12,621.85 × 7,272.96
  4. Step 4: Simplify right side
    9,155.13x = 91,798,210.18
  5. Step 5: Solve for x
    x = 91,798,210.18/9,155.13
  6. Step 6: Final answer
    x = 10,026.97

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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.