Home / 11,447.05-15,798.45-6,411.55

Finding the Fourth Proportional to 11,447.05, 15,798.45 and 6,411.55

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Solution

The fourth proportional to 11,447.05, 15,798.45 and 6,411.55 is: 8,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.05 : 15,798.45 = 6,411.55 : x
  2. Step 2: Convert to fraction form
    11,447.05/15,798.45 = 6,411.55/x
  3. Step 3: Cross multiply
    11,447.05x = 15,798.45 × 6,411.55
  4. Step 4: Simplify right side
    11,447.05x = 101,292,552.10
  5. Step 5: Solve for x
    x = 101,292,552.10/11,447.05
  6. Step 6: Final answer
    x = 8,848.79

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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.