Home / 11,117.67-15,344.24-6,400.95

Finding the Fourth Proportional to 11,117.67, 15,344.24 and 6,400.95

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Solution

The fourth proportional to 11,117.67, 15,344.24 and 6,400.95 is: 8,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.67 : 15,344.24 = 6,400.95 : x
  2. Step 2: Convert to fraction form
    11,117.67/15,344.24 = 6,400.95/x
  3. Step 3: Cross multiply
    11,117.67x = 15,344.24 × 6,400.95
  4. Step 4: Simplify right side
    11,117.67x = 98,217,681.02
  5. Step 5: Solve for x
    x = 98,217,681.02/11,117.67
  6. Step 6: Final answer
    x = 8,834.38

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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.