Home / 11,149.07-15,385.89-6,113.75

Finding the Fourth Proportional to 11,149.07, 15,385.89 and 6,113.75

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Solution

The fourth proportional to 11,149.07, 15,385.89 and 6,113.75 is: 8,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.07 : 15,385.89 = 6,113.75 : x
  2. Step 2: Convert to fraction form
    11,149.07/15,385.89 = 6,113.75/x
  3. Step 3: Cross multiply
    11,149.07x = 15,385.89 × 6,113.75
  4. Step 4: Simplify right side
    11,149.07x = 94,065,484.99
  5. Step 5: Solve for x
    x = 94,065,484.99/11,149.07
  6. Step 6: Final answer
    x = 8,437.07

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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.