Home / 10,885.34-15,023.04-6,638.88

Finding the Fourth Proportional to 10,885.34, 15,023.04 and 6,638.88

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Solution

The fourth proportional to 10,885.34, 15,023.04 and 6,638.88 is: 9,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885.34 : 15,023.04 = 6,638.88 : x
  2. Step 2: Convert to fraction form
    10,885.34/15,023.04 = 6,638.88/x
  3. Step 3: Cross multiply
    10,885.34x = 15,023.04 × 6,638.88
  4. Step 4: Simplify right side
    10,885.34x = 99,736,159.80
  5. Step 5: Solve for x
    x = 99,736,159.80/10,885.34
  6. Step 6: Final answer
    x = 9,162.43

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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.