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Finding the Fourth Proportional to 15,955.58, 23,888.36 and 8,442.14

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Solution

The fourth proportional to 15,955.58, 23,888.36 and 8,442.14 is: 12,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.58 : 23,888.36 = 8,442.14 : x
  2. Step 2: Convert to fraction form
    15,955.58/23,888.36 = 8,442.14/x
  3. Step 3: Cross multiply
    15,955.58x = 23,888.36 × 8,442.14
  4. Step 4: Simplify right side
    15,955.58x = 201,668,781.15
  5. Step 5: Solve for x
    x = 201,668,781.15/15,955.58
  6. Step 6: Final answer
    x = 12,639.39

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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.