Home / 10,447.10-14,416.95-5,731.28

Finding the Fourth Proportional to 10,447.10, 14,416.95 and 5,731.28

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Solution

The fourth proportional to 10,447.10, 14,416.95 and 5,731.28 is: 7,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.10 : 14,416.95 = 5,731.28 : x
  2. Step 2: Convert to fraction form
    10,447.10/14,416.95 = 5,731.28/x
  3. Step 3: Cross multiply
    10,447.10x = 14,416.95 × 5,731.28
  4. Step 4: Simplify right side
    10,447.10x = 82,627,577.20
  5. Step 5: Solve for x
    x = 82,627,577.20/10,447.10
  6. Step 6: Final answer
    x = 7,909.14

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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.