Home / 13,439.80-20,159.52-4,674.70

Finding the Fourth Proportional to 13,439.80, 20,159.52 and 4,674.70

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Solution

The fourth proportional to 13,439.80, 20,159.52 and 4,674.70 is: 7,011.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.80 : 20,159.52 = 4,674.70 : x
  2. Step 2: Convert to fraction form
    13,439.80/20,159.52 = 4,674.70/x
  3. Step 3: Cross multiply
    13,439.80x = 20,159.52 × 4,674.70
  4. Step 4: Simplify right side
    13,439.80x = 94,239,708.14
  5. Step 5: Solve for x
    x = 94,239,708.14/13,439.80
  6. Step 6: Final answer
    x = 7,011.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.