Home / 10,244.80-15,383.40-7,490.80

Finding the Fourth Proportional to 10,244.80, 15,383.40 and 7,490.80

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Solution

The fourth proportional to 10,244.80, 15,383.40 and 7,490.80 is: 11,248.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,244.80 : 15,383.40 = 7,490.80 : x
  2. Step 2: Convert to fraction form
    10,244.80/15,383.40 = 7,490.80/x
  3. Step 3: Cross multiply
    10,244.80x = 15,383.40 × 7,490.80
  4. Step 4: Simplify right side
    10,244.80x = 115,233,972.72
  5. Step 5: Solve for x
    x = 115,233,972.72/10,244.80
  6. Step 6: Final answer
    x = 11,248.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.