Home / 15,506.07-21,398.22-8,432.34

Finding the Fourth Proportional to 15,506.07, 21,398.22 and 8,432.34

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Solution

The fourth proportional to 15,506.07, 21,398.22 and 8,432.34 is: 11,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.07 : 21,398.22 = 8,432.34 : x
  2. Step 2: Convert to fraction form
    15,506.07/21,398.22 = 8,432.34/x
  3. Step 3: Cross multiply
    15,506.07x = 21,398.22 × 8,432.34
  4. Step 4: Simplify right side
    15,506.07x = 180,437,066.43
  5. Step 5: Solve for x
    x = 180,437,066.43/15,506.07
  6. Step 6: Final answer
    x = 11,636.54

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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.