Home / 8,432.74-11,640.93-5,450.02

Finding the Fourth Proportional to 8,432.74, 11,640.93 and 5,450.02

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Solution

The fourth proportional to 8,432.74, 11,640.93 and 5,450.02 is: 7,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.74 : 11,640.93 = 5,450.02 : x
  2. Step 2: Convert to fraction form
    8,432.74/11,640.93 = 5,450.02/x
  3. Step 3: Cross multiply
    8,432.74x = 11,640.93 × 5,450.02
  4. Step 4: Simplify right side
    8,432.74x = 63,443,301.32
  5. Step 5: Solve for x
    x = 63,443,301.32/8,432.74
  6. Step 6: Final answer
    x = 7,523.45

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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.