Home / 11,285.28-15,568.50-7,307.70

Finding the Fourth Proportional to 11,285.28, 15,568.50 and 7,307.70

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Solution

The fourth proportional to 11,285.28, 15,568.50 and 7,307.70 is: 10,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.28 : 15,568.50 = 7,307.70 : x
  2. Step 2: Convert to fraction form
    11,285.28/15,568.50 = 7,307.70/x
  3. Step 3: Cross multiply
    11,285.28x = 15,568.50 × 7,307.70
  4. Step 4: Simplify right side
    11,285.28x = 113,769,927.45
  5. Step 5: Solve for x
    x = 113,769,927.45/11,285.28
  6. Step 6: Final answer
    x = 10,081.27

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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.