Home / 15,476.77-21,358.38-9,103.83

Finding the Fourth Proportional to 15,476.77, 21,358.38 and 9,103.83

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Solution

The fourth proportional to 15,476.77, 21,358.38 and 9,103.83 is: 12,563.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.77 : 21,358.38 = 9,103.83 : x
  2. Step 2: Convert to fraction form
    15,476.77/21,358.38 = 9,103.83/x
  3. Step 3: Cross multiply
    15,476.77x = 21,358.38 × 9,103.83
  4. Step 4: Simplify right side
    15,476.77x = 194,443,060.60
  5. Step 5: Solve for x
    x = 194,443,060.60/15,476.77
  6. Step 6: Final answer
    x = 12,563.54

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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.