Home / 8,403.16-12,603.66-2,856.28

Finding the Fourth Proportional to 8,403.16, 12,603.66 and 2,856.28

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Solution

The fourth proportional to 8,403.16, 12,603.66 and 2,856.28 is: 4,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.16 : 12,603.66 = 2,856.28 : x
  2. Step 2: Convert to fraction form
    8,403.16/12,603.66 = 2,856.28/x
  3. Step 3: Cross multiply
    8,403.16x = 12,603.66 × 2,856.28
  4. Step 4: Simplify right side
    8,403.16x = 35,999,581.98
  5. Step 5: Solve for x
    x = 35,999,581.98/8,403.16
  6. Step 6: Final answer
    x = 4,284.05

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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.