Home / 13,524.40-18,661.98-7,555.84

Finding the Fourth Proportional to 13,524.40, 18,661.98 and 7,555.84

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Solution

The fourth proportional to 13,524.40, 18,661.98 and 7,555.84 is: 10,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.40 : 18,661.98 = 7,555.84 : x
  2. Step 2: Convert to fraction form
    13,524.40/18,661.98 = 7,555.84/x
  3. Step 3: Cross multiply
    13,524.40x = 18,661.98 × 7,555.84
  4. Step 4: Simplify right side
    13,524.40x = 141,006,934.96
  5. Step 5: Solve for x
    x = 141,006,934.96/13,524.40
  6. Step 6: Final answer
    x = 10,426.11

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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.