Home / 10,087.12-13,915.83-6,303.70

Finding the Fourth Proportional to 10,087.12, 13,915.83 and 6,303.70

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Solution

The fourth proportional to 10,087.12, 13,915.83 and 6,303.70 is: 8,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.12 : 13,915.83 = 6,303.70 : x
  2. Step 2: Convert to fraction form
    10,087.12/13,915.83 = 6,303.70/x
  3. Step 3: Cross multiply
    10,087.12x = 13,915.83 × 6,303.70
  4. Step 4: Simplify right side
    10,087.12x = 87,721,217.57
  5. Step 5: Solve for x
    x = 87,721,217.57/10,087.12
  6. Step 6: Final answer
    x = 8,696.36

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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.