Home / 15,877.53-21,909.56-8,803.94

Finding the Fourth Proportional to 15,877.53, 21,909.56 and 8,803.94

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Solution

The fourth proportional to 15,877.53, 21,909.56 and 8,803.94 is: 12,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.53 : 21,909.56 = 8,803.94 : x
  2. Step 2: Convert to fraction form
    15,877.53/21,909.56 = 8,803.94/x
  3. Step 3: Cross multiply
    15,877.53x = 21,909.56 × 8,803.94
  4. Step 4: Simplify right side
    15,877.53x = 192,890,298.10
  5. Step 5: Solve for x
    x = 192,890,298.10/15,877.53
  6. Step 6: Final answer
    x = 12,148.63

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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.