Home / 10,178.40-15,269.79-3,158.25

Finding the Fourth Proportional to 10,178.40, 15,269.79 and 3,158.25

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Solution

The fourth proportional to 10,178.40, 15,269.79 and 3,158.25 is: 4,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.40 : 15,269.79 = 3,158.25 : x
  2. Step 2: Convert to fraction form
    10,178.40/15,269.79 = 3,158.25/x
  3. Step 3: Cross multiply
    10,178.40x = 15,269.79 × 3,158.25
  4. Step 4: Simplify right side
    10,178.40x = 48,225,814.27
  5. Step 5: Solve for x
    x = 48,225,814.27/10,178.40
  6. Step 6: Final answer
    x = 4,738.05

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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.