Home / 15,442.07-21,310.04-8,368.43

Finding the Fourth Proportional to 15,442.07, 21,310.04 and 8,368.43

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Solution

The fourth proportional to 15,442.07, 21,310.04 and 8,368.43 is: 11,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.07 : 21,310.04 = 8,368.43 : x
  2. Step 2: Convert to fraction form
    15,442.07/21,310.04 = 8,368.43/x
  3. Step 3: Cross multiply
    15,442.07x = 21,310.04 × 8,368.43
  4. Step 4: Simplify right side
    15,442.07x = 178,331,492.41
  5. Step 5: Solve for x
    x = 178,331,492.41/15,442.07
  6. Step 6: Final answer
    x = 11,548.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.