Home / 10,877.88-15,012.54-6,628.62

Finding the Fourth Proportional to 10,877.88, 15,012.54 and 6,628.62

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Solution

The fourth proportional to 10,877.88, 15,012.54 and 6,628.62 is: 9,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.88 : 15,012.54 = 6,628.62 : x
  2. Step 2: Convert to fraction form
    10,877.88/15,012.54 = 6,628.62/x
  3. Step 3: Cross multiply
    10,877.88x = 15,012.54 × 6,628.62
  4. Step 4: Simplify right side
    10,877.88x = 99,512,422.89
  5. Step 5: Solve for x
    x = 99,512,422.89/10,877.88
  6. Step 6: Final answer
    x = 9,148.14

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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.