Home / 15,139.02-20,893.14-8,767.92

Finding the Fourth Proportional to 15,139.02, 20,893.14 and 8,767.92

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Solution

The fourth proportional to 15,139.02, 20,893.14 and 8,767.92 is: 12,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.02 : 20,893.14 = 8,767.92 : x
  2. Step 2: Convert to fraction form
    15,139.02/20,893.14 = 8,767.92/x
  3. Step 3: Cross multiply
    15,139.02x = 20,893.14 × 8,767.92
  4. Step 4: Simplify right side
    15,139.02x = 183,189,380.07
  5. Step 5: Solve for x
    x = 183,189,380.07/15,139.02
  6. Step 6: Final answer
    x = 12,100.48

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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.