Home / 8,645.15-12,935.01-5,137.04

Finding the Fourth Proportional to 8,645.15, 12,935.01 and 5,137.04

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Solution

The fourth proportional to 8,645.15, 12,935.01 and 5,137.04 is: 7,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.15 : 12,935.01 = 5,137.04 : x
  2. Step 2: Convert to fraction form
    8,645.15/12,935.01 = 5,137.04/x
  3. Step 3: Cross multiply
    8,645.15x = 12,935.01 × 5,137.04
  4. Step 4: Simplify right side
    8,645.15x = 66,447,663.77
  5. Step 5: Solve for x
    x = 66,447,663.77/8,645.15
  6. Step 6: Final answer
    x = 7,686.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.