Home / 14,485.70-21,721.85-6,587.90

Finding the Fourth Proportional to 14,485.70, 21,721.85 and 6,587.90

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Solution

The fourth proportional to 14,485.70, 21,721.85 and 6,587.90 is: 9,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.70 : 21,721.85 = 6,587.90 : x
  2. Step 2: Convert to fraction form
    14,485.70/21,721.85 = 6,587.90/x
  3. Step 3: Cross multiply
    14,485.70x = 21,721.85 × 6,587.90
  4. Step 4: Simplify right side
    14,485.70x = 143,101,377.28
  5. Step 5: Solve for x
    x = 143,101,377.28/14,485.70
  6. Step 6: Final answer
    x = 9,878.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.