Home / 15,916.40-23,830.80-8,087

Finding the Fourth Proportional to 15,916.40, 23,830.80 and 8,087

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Solution

The fourth proportional to 15,916.40, 23,830.80 and 8,087 is: 12,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.40 : 23,830.80 = 8,087 : x
  2. Step 2: Convert to fraction form
    15,916.40/23,830.80 = 8,087/x
  3. Step 3: Cross multiply
    15,916.40x = 23,830.80 × 8,087
  4. Step 4: Simplify right side
    15,916.40x = 192,719,679.60
  5. Step 5: Solve for x
    x = 192,719,679.60/15,916.40
  6. Step 6: Final answer
    x = 12,108.25

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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.