Home / 11,191.50-15,444.54-6,715.44

Finding the Fourth Proportional to 11,191.50, 15,444.54 and 6,715.44

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Solution

The fourth proportional to 11,191.50, 15,444.54 and 6,715.44 is: 9,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.50 : 15,444.54 = 6,715.44 : x
  2. Step 2: Convert to fraction form
    11,191.50/15,444.54 = 6,715.44/x
  3. Step 3: Cross multiply
    11,191.50x = 15,444.54 × 6,715.44
  4. Step 4: Simplify right side
    11,191.50x = 103,716,881.70
  5. Step 5: Solve for x
    x = 103,716,881.70/11,191.50
  6. Step 6: Final answer
    x = 9,267.47

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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.