Home / 18,672.16-28,012.56-10,887.52

Finding the Fourth Proportional to 18,672.16, 28,012.56 and 10,887.52

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Solution

The fourth proportional to 18,672.16, 28,012.56 and 10,887.52 is: 16,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.16 : 28,012.56 = 10,887.52 : x
  2. Step 2: Convert to fraction form
    18,672.16/28,012.56 = 10,887.52/x
  3. Step 3: Cross multiply
    18,672.16x = 28,012.56 × 10,887.52
  4. Step 4: Simplify right side
    18,672.16x = 304,987,307.25
  5. Step 5: Solve for x
    x = 304,987,307.25/18,672.16
  6. Step 6: Final answer
    x = 16,333.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.