Home / 10,785.21-14,880.68-6,310.06

Finding the Fourth Proportional to 10,785.21, 14,880.68 and 6,310.06

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Solution

The fourth proportional to 10,785.21, 14,880.68 and 6,310.06 is: 8,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.21 : 14,880.68 = 6,310.06 : x
  2. Step 2: Convert to fraction form
    10,785.21/14,880.68 = 6,310.06/x
  3. Step 3: Cross multiply
    10,785.21x = 14,880.68 × 6,310.06
  4. Step 4: Simplify right side
    10,785.21x = 93,897,938.55
  5. Step 5: Solve for x
    x = 93,897,938.55/10,785.21
  6. Step 6: Final answer
    x = 8,706.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.