Home / 8,720.53-12,038.83-5,537.23

Finding the Fourth Proportional to 8,720.53, 12,038.83 and 5,537.23

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Solution

The fourth proportional to 8,720.53, 12,038.83 and 5,537.23 is: 7,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.53 : 12,038.83 = 5,537.23 : x
  2. Step 2: Convert to fraction form
    8,720.53/12,038.83 = 5,537.23/x
  3. Step 3: Cross multiply
    8,720.53x = 12,038.83 × 5,537.23
  4. Step 4: Simplify right side
    8,720.53x = 66,661,726.70
  5. Step 5: Solve for x
    x = 66,661,726.70/8,720.53
  6. Step 6: Final answer
    x = 7,644.23

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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.