Home / 15,739.37-21,718.76-9,023.46

Finding the Fourth Proportional to 15,739.37, 21,718.76 and 9,023.46

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Solution

The fourth proportional to 15,739.37, 21,718.76 and 9,023.46 is: 12,451.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.37 : 21,718.76 = 9,023.46 : x
  2. Step 2: Convert to fraction form
    15,739.37/21,718.76 = 9,023.46/x
  3. Step 3: Cross multiply
    15,739.37x = 21,718.76 × 9,023.46
  4. Step 4: Simplify right side
    15,739.37x = 195,978,362.11
  5. Step 5: Solve for x
    x = 195,978,362.11/15,739.37
  6. Step 6: Final answer
    x = 12,451.47

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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.