Home / 10,621.80-14,657.48-5,905.98

Finding the Fourth Proportional to 10,621.80, 14,657.48 and 5,905.98

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Solution

The fourth proportional to 10,621.80, 14,657.48 and 5,905.98 is: 8,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.80 : 14,657.48 = 5,905.98 : x
  2. Step 2: Convert to fraction form
    10,621.80/14,657.48 = 5,905.98/x
  3. Step 3: Cross multiply
    10,621.80x = 14,657.48 × 5,905.98
  4. Step 4: Simplify right side
    10,621.80x = 86,566,680.91
  5. Step 5: Solve for x
    x = 86,566,680.91/10,621.80
  6. Step 6: Final answer
    x = 8,149.91

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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.