Home / 15,317.83-21,147.02-9,269.20

Finding the Fourth Proportional to 15,317.83, 21,147.02 and 9,269.20

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Solution

The fourth proportional to 15,317.83, 21,147.02 and 9,269.20 is: 12,796.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.83 : 21,147.02 = 9,269.20 : x
  2. Step 2: Convert to fraction form
    15,317.83/21,147.02 = 9,269.20/x
  3. Step 3: Cross multiply
    15,317.83x = 21,147.02 × 9,269.20
  4. Step 4: Simplify right side
    15,317.83x = 196,015,957.78
  5. Step 5: Solve for x
    x = 196,015,957.78/15,317.83
  6. Step 6: Final answer
    x = 12,796.59

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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.