Home / 13,505,610.12-18,639,516.87-7,703,061.72

Finding the Fourth Proportional to 13,505,610.12, 18,639,516.87 and 7,703,061.72

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Solution

The fourth proportional to 13,505,610.12, 18,639,516.87 and 7,703,061.72 is: 10,631,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505,610.12 : 18,639,516.87 = 7,703,061.72 : x
  2. Step 2: Convert to fraction form
    13,505,610.12/18,639,516.87 = 7,703,061.72/x
  3. Step 3: Cross multiply
    13,505,610.12x = 18,639,516.87 × 7,703,061.72
  4. Step 4: Simplify right side
    13,505,610.12x = 143,581,348,880,591.22
  5. Step 5: Solve for x
    x = 143,581,348,880,591.22/13,505,610.12
  6. Step 6: Final answer
    x = 10,631,237.51

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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.