Home / 15,463.32-21,339.19-8,389.69

Finding the Fourth Proportional to 15,463.32, 21,339.19 and 8,389.69

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Solution

The fourth proportional to 15,463.32, 21,339.19 and 8,389.69 is: 11,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,463.32 : 21,339.19 = 8,389.69 : x
  2. Step 2: Convert to fraction form
    15,463.32/21,339.19 = 8,389.69/x
  3. Step 3: Cross multiply
    15,463.32x = 21,339.19 × 8,389.69
  4. Step 4: Simplify right side
    15,463.32x = 179,029,188.95
  5. Step 5: Solve for x
    x = 179,029,188.95/15,463.32
  6. Step 6: Final answer
    x = 11,577.67

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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.