Home / 15,561.61-21,474.17-8,846.31

Finding the Fourth Proportional to 15,561.61, 21,474.17 and 8,846.31

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Solution

The fourth proportional to 15,561.61, 21,474.17 and 8,846.31 is: 12,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.61 : 21,474.17 = 8,846.31 : x
  2. Step 2: Convert to fraction form
    15,561.61/21,474.17 = 8,846.31/x
  3. Step 3: Cross multiply
    15,561.61x = 21,474.17 × 8,846.31
  4. Step 4: Simplify right side
    15,561.61x = 189,967,013.21
  5. Step 5: Solve for x
    x = 189,967,013.21/15,561.61
  6. Step 6: Final answer
    x = 12,207.41

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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.