Home / 9,110.60-12,572.37-5,131.74

Finding the Fourth Proportional to 9,110.60, 12,572.37 and 5,131.74

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Solution

The fourth proportional to 9,110.60, 12,572.37 and 5,131.74 is: 7,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.60 : 12,572.37 = 5,131.74 : x
  2. Step 2: Convert to fraction form
    9,110.60/12,572.37 = 5,131.74/x
  3. Step 3: Cross multiply
    9,110.60x = 12,572.37 × 5,131.74
  4. Step 4: Simplify right side
    9,110.60x = 64,518,134.02
  5. Step 5: Solve for x
    x = 64,518,134.02/9,110.60
  6. Step 6: Final answer
    x = 7,081.66

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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.