Home / 8,377.40-12,574.20-4,222.10

Finding the Fourth Proportional to 8,377.40, 12,574.20 and 4,222.10

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Solution

The fourth proportional to 8,377.40, 12,574.20 and 4,222.10 is: 6,337.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,377.40 : 12,574.20 = 4,222.10 : x
  2. Step 2: Convert to fraction form
    8,377.40/12,574.20 = 4,222.10/x
  3. Step 3: Cross multiply
    8,377.40x = 12,574.20 × 4,222.10
  4. Step 4: Simplify right side
    8,377.40x = 53,089,529.82
  5. Step 5: Solve for x
    x = 53,089,529.82/8,377.40
  6. Step 6: Final answer
    x = 6,337.23

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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.