Home / 15,739.22-21,720.18-9,024.98

Finding the Fourth Proportional to 15,739.22, 21,720.18 and 9,024.98

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Solution

The fourth proportional to 15,739.22, 21,720.18 and 9,024.98 is: 12,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.22 : 21,720.18 = 9,024.98 : x
  2. Step 2: Convert to fraction form
    15,739.22/21,720.18 = 9,024.98/x
  3. Step 3: Cross multiply
    15,739.22x = 21,720.18 × 9,024.98
  4. Step 4: Simplify right side
    15,739.22x = 196,024,190.10
  5. Step 5: Solve for x
    x = 196,024,190.10/15,739.22
  6. Step 6: Final answer
    x = 12,454.50

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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.