Home / 10,894.61-15,034.55-6,421.11

Finding the Fourth Proportional to 10,894.61, 15,034.55 and 6,421.11

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Solution

The fourth proportional to 10,894.61, 15,034.55 and 6,421.11 is: 8,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,894.61 : 15,034.55 = 6,421.11 : x
  2. Step 2: Convert to fraction form
    10,894.61/15,034.55 = 6,421.11/x
  3. Step 3: Cross multiply
    10,894.61x = 15,034.55 × 6,421.11
  4. Step 4: Simplify right side
    10,894.61x = 96,538,467.24
  5. Step 5: Solve for x
    x = 96,538,467.24/10,894.61
  6. Step 6: Final answer
    x = 8,861.13

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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.