Home / 9,331.68-12,877.72-5,139.93

Finding the Fourth Proportional to 9,331.68, 12,877.72 and 5,139.93

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Solution

The fourth proportional to 9,331.68, 12,877.72 and 5,139.93 is: 7,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.68 : 12,877.72 = 5,139.93 : x
  2. Step 2: Convert to fraction form
    9,331.68/12,877.72 = 5,139.93/x
  3. Step 3: Cross multiply
    9,331.68x = 12,877.72 × 5,139.93
  4. Step 4: Simplify right side
    9,331.68x = 66,190,566.51
  5. Step 5: Solve for x
    x = 66,190,566.51/9,331.68
  6. Step 6: Final answer
    x = 7,093.10

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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.