Home / 13,570.65-20,359.28-6,890.73

Finding the Fourth Proportional to 13,570.65, 20,359.28 and 6,890.73

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Solution

The fourth proportional to 13,570.65, 20,359.28 and 6,890.73 is: 10,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.65 : 20,359.28 = 6,890.73 : x
  2. Step 2: Convert to fraction form
    13,570.65/20,359.28 = 6,890.73/x
  3. Step 3: Cross multiply
    13,570.65x = 20,359.28 × 6,890.73
  4. Step 4: Simplify right side
    13,570.65x = 140,290,301.47
  5. Step 5: Solve for x
    x = 140,290,301.47/13,570.65
  6. Step 6: Final answer
    x = 10,337.77

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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.