Home / 11,126.40-15,354.56-6,158.40

Finding the Fourth Proportional to 11,126.40, 15,354.56 and 6,158.40

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Solution

The fourth proportional to 11,126.40, 15,354.56 and 6,158.40 is: 8,498.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.40 : 15,354.56 = 6,158.40 : x
  2. Step 2: Convert to fraction form
    11,126.40/15,354.56 = 6,158.40/x
  3. Step 3: Cross multiply
    11,126.40x = 15,354.56 × 6,158.40
  4. Step 4: Simplify right side
    11,126.40x = 94,559,522.30
  5. Step 5: Solve for x
    x = 94,559,522.30/11,126.40
  6. Step 6: Final answer
    x = 8,498.66

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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.