Home / 10,278.18-14,190-6,747.58

Finding the Fourth Proportional to 10,278.18, 14,190 and 6,747.58

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Solution

The fourth proportional to 10,278.18, 14,190 and 6,747.58 is: 9,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.18 : 14,190 = 6,747.58 : x
  2. Step 2: Convert to fraction form
    10,278.18/14,190 = 6,747.58/x
  3. Step 3: Cross multiply
    10,278.18x = 14,190 × 6,747.58
  4. Step 4: Simplify right side
    10,278.18x = 95,748,160.20
  5. Step 5: Solve for x
    x = 95,748,160.20/10,278.18
  6. Step 6: Final answer
    x = 9,315.67

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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.