Home / 12,411.96-17,129.28-7,106.64

Finding the Fourth Proportional to 12,411.96, 17,129.28 and 7,106.64

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Solution

The fourth proportional to 12,411.96, 17,129.28 and 7,106.64 is: 9,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.96 : 17,129.28 = 7,106.64 : x
  2. Step 2: Convert to fraction form
    12,411.96/17,129.28 = 7,106.64/x
  3. Step 3: Cross multiply
    12,411.96x = 17,129.28 × 7,106.64
  4. Step 4: Simplify right side
    12,411.96x = 121,731,626.42
  5. Step 5: Solve for x
    x = 121,731,626.42/12,411.96
  6. Step 6: Final answer
    x = 9,807.61

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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.