Home / 8,897.02-12,278.09-5,122.22

Finding the Fourth Proportional to 8,897.02, 12,278.09 and 5,122.22

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Solution

The fourth proportional to 8,897.02, 12,278.09 and 5,122.22 is: 7,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.02 : 12,278.09 = 5,122.22 : x
  2. Step 2: Convert to fraction form
    8,897.02/12,278.09 = 5,122.22/x
  3. Step 3: Cross multiply
    8,897.02x = 12,278.09 × 5,122.22
  4. Step 4: Simplify right side
    8,897.02x = 62,891,029.57
  5. Step 5: Solve for x
    x = 62,891,029.57/8,897.02
  6. Step 6: Final answer
    x = 7,068.78

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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.