Home / 10,211.40-14,087.12-6,431.94

Finding the Fourth Proportional to 10,211.40, 14,087.12 and 6,431.94

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Solution

The fourth proportional to 10,211.40, 14,087.12 and 6,431.94 is: 8,873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.40 : 14,087.12 = 6,431.94 : x
  2. Step 2: Convert to fraction form
    10,211.40/14,087.12 = 6,431.94/x
  3. Step 3: Cross multiply
    10,211.40x = 14,087.12 × 6,431.94
  4. Step 4: Simplify right side
    10,211.40x = 90,607,478.45
  5. Step 5: Solve for x
    x = 90,607,478.45/10,211.40
  6. Step 6: Final answer
    x = 8,873.17

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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.