Home / 15,739.40-21,701.94-9,449.48

Finding the Fourth Proportional to 15,739.40, 21,701.94 and 9,449.48

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Solution

The fourth proportional to 15,739.40, 21,701.94 and 9,449.48 is: 13,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.40 : 21,701.94 = 9,449.48 : x
  2. Step 2: Convert to fraction form
    15,739.40/21,701.94 = 9,449.48/x
  3. Step 3: Cross multiply
    15,739.40x = 21,701.94 × 9,449.48
  4. Step 4: Simplify right side
    15,739.40x = 205,072,047.99
  5. Step 5: Solve for x
    x = 205,072,047.99/15,739.40
  6. Step 6: Final answer
    x = 13,029.22

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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.