Home / 15,325.66-21,153.45-9,042.22

Finding the Fourth Proportional to 15,325.66, 21,153.45 and 9,042.22

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Solution

The fourth proportional to 15,325.66, 21,153.45 and 9,042.22 is: 12,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.66 : 21,153.45 = 9,042.22 : x
  2. Step 2: Convert to fraction form
    15,325.66/21,153.45 = 9,042.22/x
  3. Step 3: Cross multiply
    15,325.66x = 21,153.45 × 9,042.22
  4. Step 4: Simplify right side
    15,325.66x = 191,274,148.66
  5. Step 5: Solve for x
    x = 191,274,148.66/15,325.66
  6. Step 6: Final answer
    x = 12,480.65

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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.