Home / 9,134.22-12,605.19-5,155.08

Finding the Fourth Proportional to 9,134.22, 12,605.19 and 5,155.08

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Solution

The fourth proportional to 9,134.22, 12,605.19 and 5,155.08 is: 7,113.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.22 : 12,605.19 = 5,155.08 : x
  2. Step 2: Convert to fraction form
    9,134.22/12,605.19 = 5,155.08/x
  3. Step 3: Cross multiply
    9,134.22x = 12,605.19 × 5,155.08
  4. Step 4: Simplify right side
    9,134.22x = 64,980,762.87
  5. Step 5: Solve for x
    x = 64,980,762.87/9,134.22
  6. Step 6: Final answer
    x = 7,113.99

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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.