Home / 15,280.02-21,083.22-9,982.62

Finding the Fourth Proportional to 15,280.02, 21,083.22 and 9,982.62

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Solution

The fourth proportional to 15,280.02, 21,083.22 and 9,982.62 is: 13,773.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.02 : 21,083.22 = 9,982.62 : x
  2. Step 2: Convert to fraction form
    15,280.02/21,083.22 = 9,982.62/x
  3. Step 3: Cross multiply
    15,280.02x = 21,083.22 × 9,982.62
  4. Step 4: Simplify right side
    15,280.02x = 210,465,773.64
  5. Step 5: Solve for x
    x = 210,465,773.64/15,280.02
  6. Step 6: Final answer
    x = 13,773.92

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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.