Home / 15,851.99-21,874.20-9,477.31

Finding the Fourth Proportional to 15,851.99, 21,874.20 and 9,477.31

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Solution

The fourth proportional to 15,851.99, 21,874.20 and 9,477.31 is: 13,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.99 : 21,874.20 = 9,477.31 : x
  2. Step 2: Convert to fraction form
    15,851.99/21,874.20 = 9,477.31/x
  3. Step 3: Cross multiply
    15,851.99x = 21,874.20 × 9,477.31
  4. Step 4: Simplify right side
    15,851.99x = 207,308,465.03
  5. Step 5: Solve for x
    x = 207,308,465.03/15,851.99
  6. Step 6: Final answer
    x = 13,077.76

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Similar ratio
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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.