Home / 13,340.56-18,400.44-10,191.28

Finding the Fourth Proportional to 13,340.56, 18,400.44 and 10,191.28

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Solution

The fourth proportional to 13,340.56, 18,400.44 and 10,191.28 is: 14,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.56 : 18,400.44 = 10,191.28 : x
  2. Step 2: Convert to fraction form
    13,340.56/18,400.44 = 10,191.28/x
  3. Step 3: Cross multiply
    13,340.56x = 18,400.44 × 10,191.28
  4. Step 4: Simplify right side
    13,340.56x = 187,524,036.16
  5. Step 5: Solve for x
    x = 187,524,036.16/13,340.56
  6. Step 6: Final answer
    x = 14,056.68

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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.