Home / 8,718.01-12,029.59-5,130.83

Finding the Fourth Proportional to 8,718.01, 12,029.59 and 5,130.83

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Solution

The fourth proportional to 8,718.01, 12,029.59 and 5,130.83 is: 7,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.01 : 12,029.59 = 5,130.83 : x
  2. Step 2: Convert to fraction form
    8,718.01/12,029.59 = 5,130.83/x
  3. Step 3: Cross multiply
    8,718.01x = 12,029.59 × 5,130.83
  4. Step 4: Simplify right side
    8,718.01x = 61,721,781.26
  5. Step 5: Solve for x
    x = 61,721,781.26/8,718.01
  6. Step 6: Final answer
    x = 7,079.80

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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.