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Finding the Fourth Proportional to 15,916.40, 23,857.94 and 8,886.10

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Solution

The fourth proportional to 15,916.40, 23,857.94 and 8,886.10 is: 13,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.40 : 23,857.94 = 8,886.10 : x
  2. Step 2: Convert to fraction form
    15,916.40/23,857.94 = 8,886.10/x
  3. Step 3: Cross multiply
    15,916.40x = 23,857.94 × 8,886.10
  4. Step 4: Simplify right side
    15,916.40x = 212,004,003.20
  5. Step 5: Solve for x
    x = 212,004,003.20/15,916.40
  6. Step 6: Final answer
    x = 13,319.85

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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.