Home / 10,526.48-15,778.52-7,921.36

Finding the Fourth Proportional to 10,526.48, 15,778.52 and 7,921.36

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Solution

The fourth proportional to 10,526.48, 15,778.52 and 7,921.36 is: 11,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.48 : 15,778.52 = 7,921.36 : x
  2. Step 2: Convert to fraction form
    10,526.48/15,778.52 = 7,921.36/x
  3. Step 3: Cross multiply
    10,526.48x = 15,778.52 × 7,921.36
  4. Step 4: Simplify right side
    10,526.48x = 124,987,337.19
  5. Step 5: Solve for x
    x = 124,987,337.19/10,526.48
  6. Step 6: Final answer
    x = 11,873.61

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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.