Home / 9,715.60-14,563.80-3,864.40

Finding the Fourth Proportional to 9,715.60, 14,563.80 and 3,864.40

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Solution

The fourth proportional to 9,715.60, 14,563.80 and 3,864.40 is: 5,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.60 : 14,563.80 = 3,864.40 : x
  2. Step 2: Convert to fraction form
    9,715.60/14,563.80 = 3,864.40/x
  3. Step 3: Cross multiply
    9,715.60x = 14,563.80 × 3,864.40
  4. Step 4: Simplify right side
    9,715.60x = 56,280,348.72
  5. Step 5: Solve for x
    x = 56,280,348.72/9,715.60
  6. Step 6: Final answer
    x = 5,792.78

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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.