Home / 9,331.06-12,877.59-5,140.06

Finding the Fourth Proportional to 9,331.06, 12,877.59 and 5,140.06

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Solution

The fourth proportional to 9,331.06, 12,877.59 and 5,140.06 is: 7,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.06 : 12,877.59 = 5,140.06 : x
  2. Step 2: Convert to fraction form
    9,331.06/12,877.59 = 5,140.06/x
  3. Step 3: Cross multiply
    9,331.06x = 12,877.59 × 5,140.06
  4. Step 4: Simplify right side
    9,331.06x = 66,191,585.26
  5. Step 5: Solve for x
    x = 66,191,585.26/9,331.06
  6. Step 6: Final answer
    x = 7,093.68

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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.