Home / 15,176.40-20,947.44-13,601.76

Finding the Fourth Proportional to 15,176.40, 20,947.44 and 13,601.76

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Solution

The fourth proportional to 15,176.40, 20,947.44 and 13,601.76 is: 18,774.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.40 : 20,947.44 = 13,601.76 : x
  2. Step 2: Convert to fraction form
    15,176.40/20,947.44 = 13,601.76/x
  3. Step 3: Cross multiply
    15,176.40x = 20,947.44 × 13,601.76
  4. Step 4: Simplify right side
    15,176.40x = 284,922,051.49
  5. Step 5: Solve for x
    x = 284,922,051.49/15,176.40
  6. Step 6: Final answer
    x = 18,774.02

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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.