Home / 15,384.26-21,230.24-8,310.67

Finding the Fourth Proportional to 15,384.26, 21,230.24 and 8,310.67

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Solution

The fourth proportional to 15,384.26, 21,230.24 and 8,310.67 is: 11,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,384.26 : 21,230.24 = 8,310.67 : x
  2. Step 2: Convert to fraction form
    15,384.26/21,230.24 = 8,310.67/x
  3. Step 3: Cross multiply
    15,384.26x = 21,230.24 × 8,310.67
  4. Step 4: Simplify right side
    15,384.26x = 176,437,424.03
  5. Step 5: Solve for x
    x = 176,437,424.03/15,384.26
  6. Step 6: Final answer
    x = 11,468.70

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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.