Home / 15,925-21,976.53-8,853.10

Finding the Fourth Proportional to 15,925, 21,976.53 and 8,853.10

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Solution

The fourth proportional to 15,925, 21,976.53 and 8,853.10 is: 12,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925 : 21,976.53 = 8,853.10 : x
  2. Step 2: Convert to fraction form
    15,925/21,976.53 = 8,853.10/x
  3. Step 3: Cross multiply
    15,925x = 21,976.53 × 8,853.10
  4. Step 4: Simplify right side
    15,925x = 194,560,417.74
  5. Step 5: Solve for x
    x = 194,560,417.74/15,925
  6. Step 6: Final answer
    x = 12,217.29

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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.