Home / 13,733.84-18,951.56-7,765.20

Finding the Fourth Proportional to 13,733.84, 18,951.56 and 7,765.20

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Solution

The fourth proportional to 13,733.84, 18,951.56 and 7,765.20 is: 10,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.84 : 18,951.56 = 7,765.20 : x
  2. Step 2: Convert to fraction form
    13,733.84/18,951.56 = 7,765.20/x
  3. Step 3: Cross multiply
    13,733.84x = 18,951.56 × 7,765.20
  4. Step 4: Simplify right side
    13,733.84x = 147,162,653.71
  5. Step 5: Solve for x
    x = 147,162,653.71/13,733.84
  6. Step 6: Final answer
    x = 10,715.33

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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.