Home / 15,389.87-23,070.33-8,359.56

Finding the Fourth Proportional to 15,389.87, 23,070.33 and 8,359.56

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Solution

The fourth proportional to 15,389.87, 23,070.33 and 8,359.56 is: 12,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.87 : 23,070.33 = 8,359.56 : x
  2. Step 2: Convert to fraction form
    15,389.87/23,070.33 = 8,359.56/x
  3. Step 3: Cross multiply
    15,389.87x = 23,070.33 × 8,359.56
  4. Step 4: Simplify right side
    15,389.87x = 192,857,807.85
  5. Step 5: Solve for x
    x = 192,857,807.85/15,389.87
  6. Step 6: Final answer
    x = 12,531.48

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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.