Home / 11,114.53-15,339.72-6,397.90

Finding the Fourth Proportional to 11,114.53, 15,339.72 and 6,397.90

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Solution

The fourth proportional to 11,114.53, 15,339.72 and 6,397.90 is: 8,830.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.53 : 15,339.72 = 6,397.90 : x
  2. Step 2: Convert to fraction form
    11,114.53/15,339.72 = 6,397.90/x
  3. Step 3: Cross multiply
    11,114.53x = 15,339.72 × 6,397.90
  4. Step 4: Simplify right side
    11,114.53x = 98,141,994.59
  5. Step 5: Solve for x
    x = 98,141,994.59/11,114.53
  6. Step 6: Final answer
    x = 8,830.06

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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.