Home / 8,403.32-12,603.44-2,478.98

Finding the Fourth Proportional to 8,403.32, 12,603.44 and 2,478.98

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Solution

The fourth proportional to 8,403.32, 12,603.44 and 2,478.98 is: 3,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.32 : 12,603.44 = 2,478.98 : x
  2. Step 2: Convert to fraction form
    8,403.32/12,603.44 = 2,478.98/x
  3. Step 3: Cross multiply
    8,403.32x = 12,603.44 × 2,478.98
  4. Step 4: Simplify right side
    8,403.32x = 31,243,675.69
  5. Step 5: Solve for x
    x = 31,243,675.69/8,403.32
  6. Step 6: Final answer
    x = 3,718.02

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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.