Home / 15,524.73-21,423.69-9,151.45

Finding the Fourth Proportional to 15,524.73, 21,423.69 and 9,151.45

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Solution

The fourth proportional to 15,524.73, 21,423.69 and 9,151.45 is: 12,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.73 : 21,423.69 = 9,151.45 : x
  2. Step 2: Convert to fraction form
    15,524.73/21,423.69 = 9,151.45/x
  3. Step 3: Cross multiply
    15,524.73x = 21,423.69 × 9,151.45
  4. Step 4: Simplify right side
    15,524.73x = 196,057,774.29
  5. Step 5: Solve for x
    x = 196,057,774.29/15,524.73
  6. Step 6: Final answer
    x = 12,628.74

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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.