Home / 15,877.10-21,910.53-8,803.62

Finding the Fourth Proportional to 15,877.10, 21,910.53 and 8,803.62

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Solution

The fourth proportional to 15,877.10, 21,910.53 and 8,803.62 is: 12,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.10 : 21,910.53 = 8,803.62 : x
  2. Step 2: Convert to fraction form
    15,877.10/21,910.53 = 8,803.62/x
  3. Step 3: Cross multiply
    15,877.10x = 21,910.53 × 8,803.62
  4. Step 4: Simplify right side
    15,877.10x = 192,891,980.12
  5. Step 5: Solve for x
    x = 192,891,980.12/15,877.10
  6. Step 6: Final answer
    x = 12,149.07

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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.