Home / 8,643.45-12,963.73-2,402.60

Finding the Fourth Proportional to 8,643.45, 12,963.73 and 2,402.60

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Solution

The fourth proportional to 8,643.45, 12,963.73 and 2,402.60 is: 3,603.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.45 : 12,963.73 = 2,402.60 : x
  2. Step 2: Convert to fraction form
    8,643.45/12,963.73 = 2,402.60/x
  3. Step 3: Cross multiply
    8,643.45x = 12,963.73 × 2,402.60
  4. Step 4: Simplify right side
    8,643.45x = 31,146,657.70
  5. Step 5: Solve for x
    x = 31,146,657.70/8,643.45
  6. Step 6: Final answer
    x = 3,603.50

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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.