Home / 13,360.71-18,425.55-11,471.70

Finding the Fourth Proportional to 13,360.71, 18,425.55 and 11,471.70

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Solution

The fourth proportional to 13,360.71, 18,425.55 and 11,471.70 is: 15,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.71 : 18,425.55 = 11,471.70 : x
  2. Step 2: Convert to fraction form
    13,360.71/18,425.55 = 11,471.70/x
  3. Step 3: Cross multiply
    13,360.71x = 18,425.55 × 11,471.70
  4. Step 4: Simplify right side
    13,360.71x = 211,372,381.94
  5. Step 5: Solve for x
    x = 211,372,381.94/13,360.71
  6. Step 6: Final answer
    x = 15,820.45

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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.