Home / 11,483.19-15,847.72-6,447.75

Finding the Fourth Proportional to 11,483.19, 15,847.72 and 6,447.75

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Solution

The fourth proportional to 11,483.19, 15,847.72 and 6,447.75 is: 8,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.19 : 15,847.72 = 6,447.75 : x
  2. Step 2: Convert to fraction form
    11,483.19/15,847.72 = 6,447.75/x
  3. Step 3: Cross multiply
    11,483.19x = 15,847.72 × 6,447.75
  4. Step 4: Simplify right side
    11,483.19x = 102,182,061.08
  5. Step 5: Solve for x
    x = 102,182,061.08/11,483.19
  6. Step 6: Final answer
    x = 8,898.40

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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.