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Finding the Fourth Proportional to 22,248.78, 33,378.16 and 7,457.32

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Solution

The fourth proportional to 22,248.78, 33,378.16 and 7,457.32 is: 11,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.78 : 33,378.16 = 7,457.32 : x
  2. Step 2: Convert to fraction form
    22,248.78/33,378.16 = 7,457.32/x
  3. Step 3: Cross multiply
    22,248.78x = 33,378.16 × 7,457.32
  4. Step 4: Simplify right side
    22,248.78x = 248,911,500.90
  5. Step 5: Solve for x
    x = 248,911,500.90/22,248.78
  6. Step 6: Final answer
    x = 11,187.65

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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.