Home / 13,705.02-20,555.19-4,938.66

Finding the Fourth Proportional to 13,705.02, 20,555.19 and 4,938.66

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Solution

The fourth proportional to 13,705.02, 20,555.19 and 4,938.66 is: 7,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.02 : 20,555.19 = 4,938.66 : x
  2. Step 2: Convert to fraction form
    13,705.02/20,555.19 = 4,938.66/x
  3. Step 3: Cross multiply
    13,705.02x = 20,555.19 × 4,938.66
  4. Step 4: Simplify right side
    13,705.02x = 101,515,094.65
  5. Step 5: Solve for x
    x = 101,515,094.65/13,705.02
  6. Step 6: Final answer
    x = 7,407.15

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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.