Home / 13,756.20-18,983.65-7,468.58

Finding the Fourth Proportional to 13,756.20, 18,983.65 and 7,468.58

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Solution

The fourth proportional to 13,756.20, 18,983.65 and 7,468.58 is: 10,306.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.20 : 18,983.65 = 7,468.58 : x
  2. Step 2: Convert to fraction form
    13,756.20/18,983.65 = 7,468.58/x
  3. Step 3: Cross multiply
    13,756.20x = 18,983.65 × 7,468.58
  4. Step 4: Simplify right side
    13,756.20x = 141,780,908.72
  5. Step 5: Solve for x
    x = 141,780,908.72/13,756.20
  6. Step 6: Final answer
    x = 10,306.69

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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.