Home / 11,015,596.92-15,210,701.20-9,189,626.72

Finding the Fourth Proportional to 11,015,596.92, 15,210,701.20 and 9,189,626.72

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Solution

The fourth proportional to 11,015,596.92, 15,210,701.20 and 9,189,626.72 is: 12,689,341.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015,596.92 : 15,210,701.20 = 9,189,626.72 : x
  2. Step 2: Convert to fraction form
    11,015,596.92/15,210,701.20 = 9,189,626.72/x
  3. Step 3: Cross multiply
    11,015,596.92x = 15,210,701.20 × 9,189,626.72
  4. Step 4: Simplify right side
    11,015,596.92x = 139,780,666,177,456.06
  5. Step 5: Solve for x
    x = 139,780,666,177,456.06/11,015,596.92
  6. Step 6: Final answer
    x = 12,689,341.05

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Double scale
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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.