Home / 12,522.04-17,280.12-7,219.84

Finding the Fourth Proportional to 12,522.04, 17,280.12 and 7,219.84

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Solution

The fourth proportional to 12,522.04, 17,280.12 and 7,219.84 is: 9,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.04 : 17,280.12 = 7,219.84 : x
  2. Step 2: Convert to fraction form
    12,522.04/17,280.12 = 7,219.84/x
  3. Step 3: Cross multiply
    12,522.04x = 17,280.12 × 7,219.84
  4. Step 4: Simplify right side
    12,522.04x = 124,759,701.58
  5. Step 5: Solve for x
    x = 124,759,701.58/12,522.04
  6. Step 6: Final answer
    x = 9,963.21

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Double scale
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Similar ratio
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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.