Home / 8,815.98-12,166.02-5,458.13

Finding the Fourth Proportional to 8,815.98, 12,166.02 and 5,458.13

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Solution

The fourth proportional to 8,815.98, 12,166.02 and 5,458.13 is: 7,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.98 : 12,166.02 = 5,458.13 : x
  2. Step 2: Convert to fraction form
    8,815.98/12,166.02 = 5,458.13/x
  3. Step 3: Cross multiply
    8,815.98x = 12,166.02 × 5,458.13
  4. Step 4: Simplify right side
    8,815.98x = 66,403,718.74
  5. Step 5: Solve for x
    x = 66,403,718.74/8,815.98
  6. Step 6: Final answer
    x = 7,532.20

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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.