Home / 7,663.42-11,495.40-2,983.78

Finding the Fourth Proportional to 7,663.42, 11,495.40 and 2,983.78

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Solution

The fourth proportional to 7,663.42, 11,495.40 and 2,983.78 is: 4,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663.42 : 11,495.40 = 2,983.78 : x
  2. Step 2: Convert to fraction form
    7,663.42/11,495.40 = 2,983.78/x
  3. Step 3: Cross multiply
    7,663.42x = 11,495.40 × 2,983.78
  4. Step 4: Simplify right side
    7,663.42x = 34,299,744.61
  5. Step 5: Solve for x
    x = 34,299,744.61/7,663.42
  6. Step 6: Final answer
    x = 4,475.78

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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.