Home / 14,151.70-19,528.39-7,778.16

Finding the Fourth Proportional to 14,151.70, 19,528.39 and 7,778.16

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Solution

The fourth proportional to 14,151.70, 19,528.39 and 7,778.16 is: 10,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.70 : 19,528.39 = 7,778.16 : x
  2. Step 2: Convert to fraction form
    14,151.70/19,528.39 = 7,778.16/x
  3. Step 3: Cross multiply
    14,151.70x = 19,528.39 × 7,778.16
  4. Step 4: Simplify right side
    14,151.70x = 151,894,951.69
  5. Step 5: Solve for x
    x = 151,894,951.69/14,151.70
  6. Step 6: Final answer
    x = 10,733.34

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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.