Home / 10,877.20-15,010.52-6,628.25

Finding the Fourth Proportional to 10,877.20, 15,010.52 and 6,628.25

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Solution

The fourth proportional to 10,877.20, 15,010.52 and 6,628.25 is: 9,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.20 : 15,010.52 = 6,628.25 : x
  2. Step 2: Convert to fraction form
    10,877.20/15,010.52 = 6,628.25/x
  3. Step 3: Cross multiply
    10,877.20x = 15,010.52 × 6,628.25
  4. Step 4: Simplify right side
    10,877.20x = 99,493,483.58
  5. Step 5: Solve for x
    x = 99,493,483.58/10,877.20
  6. Step 6: Final answer
    x = 9,146.98

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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.