Home / 16,921.85-23,327.69-11,870.39

Finding the Fourth Proportional to 16,921.85, 23,327.69 and 11,870.39

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Solution

The fourth proportional to 16,921.85, 23,327.69 and 11,870.39 is: 16,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.85 : 23,327.69 = 11,870.39 : x
  2. Step 2: Convert to fraction form
    16,921.85/23,327.69 = 11,870.39/x
  3. Step 3: Cross multiply
    16,921.85x = 23,327.69 × 11,870.39
  4. Step 4: Simplify right side
    16,921.85x = 276,908,777.07
  5. Step 5: Solve for x
    x = 276,908,777.07/16,921.85
  6. Step 6: Final answer
    x = 16,363.98

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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.