Home / 15,994.98-22,068.18-9,278.28

Finding the Fourth Proportional to 15,994.98, 22,068.18 and 9,278.28

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Solution

The fourth proportional to 15,994.98, 22,068.18 and 9,278.28 is: 12,801.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.98 : 22,068.18 = 9,278.28 : x
  2. Step 2: Convert to fraction form
    15,994.98/22,068.18 = 9,278.28/x
  3. Step 3: Cross multiply
    15,994.98x = 22,068.18 × 9,278.28
  4. Step 4: Simplify right side
    15,994.98x = 204,754,753.13
  5. Step 5: Solve for x
    x = 204,754,753.13/15,994.98
  6. Step 6: Final answer
    x = 12,801.19

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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.