Home / 11,187.01-15,436.36-6,470.38

Finding the Fourth Proportional to 11,187.01, 15,436.36 and 6,470.38

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Solution

The fourth proportional to 11,187.01, 15,436.36 and 6,470.38 is: 8,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.01 : 15,436.36 = 6,470.38 : x
  2. Step 2: Convert to fraction form
    11,187.01/15,436.36 = 6,470.38/x
  3. Step 3: Cross multiply
    11,187.01x = 15,436.36 × 6,470.38
  4. Step 4: Simplify right side
    11,187.01x = 99,879,005.48
  5. Step 5: Solve for x
    x = 99,879,005.48/11,187.01
  6. Step 6: Final answer
    x = 8,928.13

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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.