Home / 13,599.62-18,769.35-7,631.65

Finding the Fourth Proportional to 13,599.62, 18,769.35 and 7,631.65

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Solution

The fourth proportional to 13,599.62, 18,769.35 and 7,631.65 is: 10,532.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.62 : 18,769.35 = 7,631.65 : x
  2. Step 2: Convert to fraction form
    13,599.62/18,769.35 = 7,631.65/x
  3. Step 3: Cross multiply
    13,599.62x = 18,769.35 × 7,631.65
  4. Step 4: Simplify right side
    13,599.62x = 143,240,977.92
  5. Step 5: Solve for x
    x = 143,240,977.92/13,599.62
  6. Step 6: Final answer
    x = 10,532.72

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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.