Home / 8,646.95-12,972.26-2,803.11

Finding the Fourth Proportional to 8,646.95, 12,972.26 and 2,803.11

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Solution

The fourth proportional to 8,646.95, 12,972.26 and 2,803.11 is: 4,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.95 : 12,972.26 = 2,803.11 : x
  2. Step 2: Convert to fraction form
    8,646.95/12,972.26 = 2,803.11/x
  3. Step 3: Cross multiply
    8,646.95x = 12,972.26 × 2,803.11
  4. Step 4: Simplify right side
    8,646.95x = 36,362,657.71
  5. Step 5: Solve for x
    x = 36,362,657.71/8,646.95
  6. Step 6: Final answer
    x = 4,205.26

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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.