Home / 15,518,021.34-21,414,876-8,995,434.18

Finding the Fourth Proportional to 15,518,021.34, 21,414,876 and 8,995,434.18

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Solution

The fourth proportional to 15,518,021.34, 21,414,876 and 8,995,434.18 is: 12,413,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518,021.34 : 21,414,876 = 8,995,434.18 : x
  2. Step 2: Convert to fraction form
    15,518,021.34/21,414,876 = 8,995,434.18/x
  3. Step 3: Cross multiply
    15,518,021.34x = 21,414,876 × 8,995,434.18
  4. Step 4: Simplify right side
    15,518,021.34x = 192,636,107,530,861.69
  5. Step 5: Solve for x
    x = 192,636,107,530,861.69/15,518,021.34
  6. Step 6: Final answer
    x = 12,413,702.97

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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.