Home / 15,506.06-21,398.58-8,432.48

Finding the Fourth Proportional to 15,506.06, 21,398.58 and 8,432.48

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Solution

The fourth proportional to 15,506.06, 21,398.58 and 8,432.48 is: 11,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.06 : 21,398.58 = 8,432.48 : x
  2. Step 2: Convert to fraction form
    15,506.06/21,398.58 = 8,432.48/x
  3. Step 3: Cross multiply
    15,506.06x = 21,398.58 × 8,432.48
  4. Step 4: Simplify right side
    15,506.06x = 180,443,097.88
  5. Step 5: Solve for x
    x = 180,443,097.88/15,506.06
  6. Step 6: Final answer
    x = 11,636.94

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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.