Home / 10,069.70-13,955.06-9,928.76

Finding the Fourth Proportional to 10,069.70, 13,955.06 and 9,928.76

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Solution

The fourth proportional to 10,069.70, 13,955.06 and 9,928.76 is: 13,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069.70 : 13,955.06 = 9,928.76 : x
  2. Step 2: Convert to fraction form
    10,069.70/13,955.06 = 9,928.76/x
  3. Step 3: Cross multiply
    10,069.70x = 13,955.06 × 9,928.76
  4. Step 4: Simplify right side
    10,069.70x = 138,556,441.53
  5. Step 5: Solve for x
    x = 138,556,441.53/10,069.70
  6. Step 6: Final answer
    x = 13,759.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.