Home / 15,777.45-23,641.38-9,921.74

Finding the Fourth Proportional to 15,777.45, 23,641.38 and 9,921.74

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Solution

The fourth proportional to 15,777.45, 23,641.38 and 9,921.74 is: 14,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.45 : 23,641.38 = 9,921.74 : x
  2. Step 2: Convert to fraction form
    15,777.45/23,641.38 = 9,921.74/x
  3. Step 3: Cross multiply
    15,777.45x = 23,641.38 × 9,921.74
  4. Step 4: Simplify right side
    15,777.45x = 234,563,507.39
  5. Step 5: Solve for x
    x = 234,563,507.39/15,777.45
  6. Step 6: Final answer
    x = 14,867.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.