Home / 11,186.85-15,437.91-6,151.40

Finding the Fourth Proportional to 11,186.85, 15,437.91 and 6,151.40

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Solution

The fourth proportional to 11,186.85, 15,437.91 and 6,151.40 is: 8,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.85 : 15,437.91 = 6,151.40 : x
  2. Step 2: Convert to fraction form
    11,186.85/15,437.91 = 6,151.40/x
  3. Step 3: Cross multiply
    11,186.85x = 15,437.91 × 6,151.40
  4. Step 4: Simplify right side
    11,186.85x = 94,964,688.19
  5. Step 5: Solve for x
    x = 94,964,688.19/11,186.85
  6. Step 6: Final answer
    x = 8,488.96

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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.