Home / 13,056.24-18,017.13-7,087.78

Finding the Fourth Proportional to 13,056.24, 18,017.13 and 7,087.78

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Solution

The fourth proportional to 13,056.24, 18,017.13 and 7,087.78 is: 9,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.24 : 18,017.13 = 7,087.78 : x
  2. Step 2: Convert to fraction form
    13,056.24/18,017.13 = 7,087.78/x
  3. Step 3: Cross multiply
    13,056.24x = 18,017.13 × 7,087.78
  4. Step 4: Simplify right side
    13,056.24x = 127,701,453.67
  5. Step 5: Solve for x
    x = 127,701,453.67/13,056.24
  6. Step 6: Final answer
    x = 9,780.88

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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.