Home / 11,151.95-16,728.12-5,307.39

Finding the Fourth Proportional to 11,151.95, 16,728.12 and 5,307.39

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Solution

The fourth proportional to 11,151.95, 16,728.12 and 5,307.39 is: 7,961.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.95 : 16,728.12 = 5,307.39 : x
  2. Step 2: Convert to fraction form
    11,151.95/16,728.12 = 5,307.39/x
  3. Step 3: Cross multiply
    11,151.95x = 16,728.12 × 5,307.39
  4. Step 4: Simplify right side
    11,151.95x = 88,782,656.81
  5. Step 5: Solve for x
    x = 88,782,656.81/11,151.95
  6. Step 6: Final answer
    x = 7,961.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.