Home / 10,648.16-15,951.43-8,776.76

Finding the Fourth Proportional to 10,648.16, 15,951.43 and 8,776.76

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Solution

The fourth proportional to 10,648.16, 15,951.43 and 8,776.76 is: 13,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.16 : 15,951.43 = 8,776.76 : x
  2. Step 2: Convert to fraction form
    10,648.16/15,951.43 = 8,776.76/x
  3. Step 3: Cross multiply
    10,648.16x = 15,951.43 × 8,776.76
  4. Step 4: Simplify right side
    10,648.16x = 140,001,803.98
  5. Step 5: Solve for x
    x = 140,001,803.98/10,648.16
  6. Step 6: Final answer
    x = 13,147.98

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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.