Home / 10,214.69-15,326.34-3,979.11

Finding the Fourth Proportional to 10,214.69, 15,326.34 and 3,979.11

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Solution

The fourth proportional to 10,214.69, 15,326.34 and 3,979.11 is: 5,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,214.69 : 15,326.34 = 3,979.11 : x
  2. Step 2: Convert to fraction form
    10,214.69/15,326.34 = 3,979.11/x
  3. Step 3: Cross multiply
    10,214.69x = 15,326.34 × 3,979.11
  4. Step 4: Simplify right side
    10,214.69x = 60,985,192.76
  5. Step 5: Solve for x
    x = 60,985,192.76/10,214.69
  6. Step 6: Final answer
    x = 5,970.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.