Home / 8,403.40-12,595.38-4,923.64

Finding the Fourth Proportional to 8,403.40, 12,595.38 and 4,923.64

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Solution

The fourth proportional to 8,403.40, 12,595.38 and 4,923.64 is: 7,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.40 : 12,595.38 = 4,923.64 : x
  2. Step 2: Convert to fraction form
    8,403.40/12,595.38 = 4,923.64/x
  3. Step 3: Cross multiply
    8,403.40x = 12,595.38 × 4,923.64
  4. Step 4: Simplify right side
    8,403.40x = 62,015,116.78
  5. Step 5: Solve for x
    x = 62,015,116.78/8,403.40
  6. Step 6: Final answer
    x = 7,379.76

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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.