Home / 13,744.18-18,967.57-7,775.70

Finding the Fourth Proportional to 13,744.18, 18,967.57 and 7,775.70

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Solution

The fourth proportional to 13,744.18, 18,967.57 and 7,775.70 is: 10,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.18 : 18,967.57 = 7,775.70 : x
  2. Step 2: Convert to fraction form
    13,744.18/18,967.57 = 7,775.70/x
  3. Step 3: Cross multiply
    13,744.18x = 18,967.57 × 7,775.70
  4. Step 4: Simplify right side
    13,744.18x = 147,486,043.48
  5. Step 5: Solve for x
    x = 147,486,043.48/13,744.18
  6. Step 6: Final answer
    x = 10,730.80

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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.