Home / 13,673,545.56-18,867,396.78-7,871,206.12

Finding the Fourth Proportional to 13,673,545.56, 18,867,396.78 and 7,871,206.12

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Solution

The fourth proportional to 13,673,545.56, 18,867,396.78 and 7,871,206.12 is: 10,861,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673,545.56 : 18,867,396.78 = 7,871,206.12 : x
  2. Step 2: Convert to fraction form
    13,673,545.56/18,867,396.78 = 7,871,206.12/x
  3. Step 3: Cross multiply
    13,673,545.56x = 18,867,396.78 × 7,871,206.12
  4. Step 4: Simplify right side
    13,673,545.56x = 148,509,169,003,204.31
  5. Step 5: Solve for x
    x = 148,509,169,003,204.31/13,673,545.56
  6. Step 6: Final answer
    x = 10,861,057.83

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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.