Home / 10,254.60-14,151.20-5,778.45

Finding the Fourth Proportional to 10,254.60, 14,151.20 and 5,778.45

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Solution

The fourth proportional to 10,254.60, 14,151.20 and 5,778.45 is: 7,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.60 : 14,151.20 = 5,778.45 : x
  2. Step 2: Convert to fraction form
    10,254.60/14,151.20 = 5,778.45/x
  3. Step 3: Cross multiply
    10,254.60x = 14,151.20 × 5,778.45
  4. Step 4: Simplify right side
    10,254.60x = 81,771,972.75
  5. Step 5: Solve for x
    x = 81,771,972.75/10,254.60
  6. Step 6: Final answer
    x = 7,974.17

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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.