Home / 12,518.04-17,282.25-7,808.70

Finding the Fourth Proportional to 12,518.04, 17,282.25 and 7,808.70

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Solution

The fourth proportional to 12,518.04, 17,282.25 and 7,808.70 is: 10,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.04 : 17,282.25 = 7,808.70 : x
  2. Step 2: Convert to fraction form
    12,518.04/17,282.25 = 7,808.70/x
  3. Step 3: Cross multiply
    12,518.04x = 17,282.25 × 7,808.70
  4. Step 4: Simplify right side
    12,518.04x = 134,951,905.58
  5. Step 5: Solve for x
    x = 134,951,905.58/12,518.04
  6. Step 6: Final answer
    x = 10,780.59

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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.