Home / 9,331.70-12,877.73-5,139.95

Finding the Fourth Proportional to 9,331.70, 12,877.73 and 5,139.95

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Solution

The fourth proportional to 9,331.70, 12,877.73 and 5,139.95 is: 7,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,331.70 : 12,877.73 = 5,139.95 : x
  2. Step 2: Convert to fraction form
    9,331.70/12,877.73 = 5,139.95/x
  3. Step 3: Cross multiply
    9,331.70x = 12,877.73 × 5,139.95
  4. Step 4: Simplify right side
    9,331.70x = 66,190,798.23
  5. Step 5: Solve for x
    x = 66,190,798.23/9,331.70
  6. Step 6: Final answer
    x = 7,093.12

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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.