Home / 10,447.12-14,417.26-5,731.38

Finding the Fourth Proportional to 10,447.12, 14,417.26 and 5,731.38

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Solution

The fourth proportional to 10,447.12, 14,417.26 and 5,731.38 is: 7,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.12 : 14,417.26 = 5,731.38 : x
  2. Step 2: Convert to fraction form
    10,447.12/14,417.26 = 5,731.38/x
  3. Step 3: Cross multiply
    10,447.12x = 14,417.26 × 5,731.38
  4. Step 4: Simplify right side
    10,447.12x = 82,630,795.62
  5. Step 5: Solve for x
    x = 82,630,795.62/10,447.12
  6. Step 6: Final answer
    x = 7,909.43

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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.