Home / 19,865.92-27,415.56-10,913.98

Finding the Fourth Proportional to 19,865.92, 27,415.56 and 10,913.98

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Solution

The fourth proportional to 19,865.92, 27,415.56 and 10,913.98 is: 15,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.92 : 27,415.56 = 10,913.98 : x
  2. Step 2: Convert to fraction form
    19,865.92/27,415.56 = 10,913.98/x
  3. Step 3: Cross multiply
    19,865.92x = 27,415.56 × 10,913.98
  4. Step 4: Simplify right side
    19,865.92x = 299,212,873.53
  5. Step 5: Solve for x
    x = 299,212,873.53/19,865.92
  6. Step 6: Final answer
    x = 15,061.62

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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.