Home / 8,720.30-13,079.04-2,393.70

Finding the Fourth Proportional to 8,720.30, 13,079.04 and 2,393.70

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Solution

The fourth proportional to 8,720.30, 13,079.04 and 2,393.70 is: 3,590.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.30 : 13,079.04 = 2,393.70 : x
  2. Step 2: Convert to fraction form
    8,720.30/13,079.04 = 2,393.70/x
  3. Step 3: Cross multiply
    8,720.30x = 13,079.04 × 2,393.70
  4. Step 4: Simplify right side
    8,720.30x = 31,307,268.52
  5. Step 5: Solve for x
    x = 31,307,268.52/8,720.30
  6. Step 6: Final answer
    x = 3,590.16

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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.