Home / 8,715.20-13,070.97-2,870.44

Finding the Fourth Proportional to 8,715.20, 13,070.97 and 2,870.44

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Solution

The fourth proportional to 8,715.20, 13,070.97 and 2,870.44 is: 4,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.20 : 13,070.97 = 2,870.44 : x
  2. Step 2: Convert to fraction form
    8,715.20/13,070.97 = 2,870.44/x
  3. Step 3: Cross multiply
    8,715.20x = 13,070.97 × 2,870.44
  4. Step 4: Simplify right side
    8,715.20x = 37,519,402.45
  5. Step 5: Solve for x
    x = 37,519,402.45/8,715.20
  6. Step 6: Final answer
    x = 4,305.06

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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.