Home / 8,795.72-12,139.14-5,260.84

Finding the Fourth Proportional to 8,795.72, 12,139.14 and 5,260.84

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Solution

The fourth proportional to 8,795.72, 12,139.14 and 5,260.84 is: 7,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.72 : 12,139.14 = 5,260.84 : x
  2. Step 2: Convert to fraction form
    8,795.72/12,139.14 = 5,260.84/x
  3. Step 3: Cross multiply
    8,795.72x = 12,139.14 × 5,260.84
  4. Step 4: Simplify right side
    8,795.72x = 63,862,073.28
  5. Step 5: Solve for x
    x = 63,862,073.28/8,795.72
  6. Step 6: Final answer
    x = 7,260.59

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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.