Home / 11,917.47-16,445.86-6,612.17

Finding the Fourth Proportional to 11,917.47, 16,445.86 and 6,612.17

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Solution

The fourth proportional to 11,917.47, 16,445.86 and 6,612.17 is: 9,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.47 : 16,445.86 = 6,612.17 : x
  2. Step 2: Convert to fraction form
    11,917.47/16,445.86 = 6,612.17/x
  3. Step 3: Cross multiply
    11,917.47x = 16,445.86 × 6,612.17
  4. Step 4: Simplify right side
    11,917.47x = 108,742,846.70
  5. Step 5: Solve for x
    x = 108,742,846.70/11,917.47
  6. Step 6: Final answer
    x = 9,124.66

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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.