Home / 8,721.56-12,033.60-5,364.92

Finding the Fourth Proportional to 8,721.56, 12,033.60 and 5,364.92

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Solution

The fourth proportional to 8,721.56, 12,033.60 and 5,364.92 is: 7,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.56 : 12,033.60 = 5,364.92 : x
  2. Step 2: Convert to fraction form
    8,721.56/12,033.60 = 5,364.92/x
  3. Step 3: Cross multiply
    8,721.56x = 12,033.60 × 5,364.92
  4. Step 4: Simplify right side
    8,721.56x = 64,559,301.31
  5. Step 5: Solve for x
    x = 64,559,301.31/8,721.56
  6. Step 6: Final answer
    x = 7,402.27

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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.