Home / 12,372.90-18,547.20-11,060.70

Finding the Fourth Proportional to 12,372.90, 18,547.20 and 11,060.70

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Solution

The fourth proportional to 12,372.90, 18,547.20 and 11,060.70 is: 16,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.90 : 18,547.20 = 11,060.70 : x
  2. Step 2: Convert to fraction form
    12,372.90/18,547.20 = 11,060.70/x
  3. Step 3: Cross multiply
    12,372.90x = 18,547.20 × 11,060.70
  4. Step 4: Simplify right side
    12,372.90x = 205,145,015.04
  5. Step 5: Solve for x
    x = 205,145,015.04/12,372.90
  6. Step 6: Final answer
    x = 16,580.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.