Home / 11,916.89-17,875.52-5,677.55

Finding the Fourth Proportional to 11,916.89, 17,875.52 and 5,677.55

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Solution

The fourth proportional to 11,916.89, 17,875.52 and 5,677.55 is: 8,516.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.89 : 17,875.52 = 5,677.55 : x
  2. Step 2: Convert to fraction form
    11,916.89/17,875.52 = 5,677.55/x
  3. Step 3: Cross multiply
    11,916.89x = 17,875.52 × 5,677.55
  4. Step 4: Simplify right side
    11,916.89x = 101,489,130.19
  5. Step 5: Solve for x
    x = 101,489,130.19/11,916.89
  6. Step 6: Final answer
    x = 8,516.41

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1.5x scale

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.