Home / 15,054.48-22,561.56-8,478

Finding the Fourth Proportional to 15,054.48, 22,561.56 and 8,478

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Solution

The fourth proportional to 15,054.48, 22,561.56 and 8,478 is: 12,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.48 : 22,561.56 = 8,478 : x
  2. Step 2: Convert to fraction form
    15,054.48/22,561.56 = 8,478/x
  3. Step 3: Cross multiply
    15,054.48x = 22,561.56 × 8,478
  4. Step 4: Simplify right side
    15,054.48x = 191,276,905.68
  5. Step 5: Solve for x
    x = 191,276,905.68/15,054.48
  6. Step 6: Final answer
    x = 12,705.65

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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.