Home / 15,506.54-21,399.90-8,432.82

Finding the Fourth Proportional to 15,506.54, 21,399.90 and 8,432.82

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Solution

The fourth proportional to 15,506.54, 21,399.90 and 8,432.82 is: 11,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.54 : 21,399.90 = 8,432.82 : x
  2. Step 2: Convert to fraction form
    15,506.54/21,399.90 = 8,432.82/x
  3. Step 3: Cross multiply
    15,506.54x = 21,399.90 × 8,432.82
  4. Step 4: Simplify right side
    15,506.54x = 180,461,504.72
  5. Step 5: Solve for x
    x = 180,461,504.72/15,506.54
  6. Step 6: Final answer
    x = 11,637.77

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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.