Home / 15,630.08-21,566.10-8,913.82

Finding the Fourth Proportional to 15,630.08, 21,566.10 and 8,913.82

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Solution

The fourth proportional to 15,630.08, 21,566.10 and 8,913.82 is: 12,299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.08 : 21,566.10 = 8,913.82 : x
  2. Step 2: Convert to fraction form
    15,630.08/21,566.10 = 8,913.82/x
  3. Step 3: Cross multiply
    15,630.08x = 21,566.10 × 8,913.82
  4. Step 4: Simplify right side
    15,630.08x = 192,236,333.50
  5. Step 5: Solve for x
    x = 192,236,333.50/15,630.08
  6. Step 6: Final answer
    x = 12,299.13

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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.