Home / 10,451.30-15,678.33-5,521.13

Finding the Fourth Proportional to 10,451.30, 15,678.33 and 5,521.13

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Solution

The fourth proportional to 10,451.30, 15,678.33 and 5,521.13 is: 8,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,451.30 : 15,678.33 = 5,521.13 : x
  2. Step 2: Convert to fraction form
    10,451.30/15,678.33 = 5,521.13/x
  3. Step 3: Cross multiply
    10,451.30x = 15,678.33 × 5,521.13
  4. Step 4: Simplify right side
    10,451.30x = 86,562,057.81
  5. Step 5: Solve for x
    x = 86,562,057.81/10,451.30
  6. Step 6: Final answer
    x = 8,282.42

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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.