Home / 19,866.78-27,416.18-10,914.45

Finding the Fourth Proportional to 19,866.78, 27,416.18 and 10,914.45

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Solution

The fourth proportional to 19,866.78, 27,416.18 and 10,914.45 is: 15,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.78 : 27,416.18 = 10,914.45 : x
  2. Step 2: Convert to fraction form
    19,866.78/27,416.18 = 10,914.45/x
  3. Step 3: Cross multiply
    19,866.78x = 27,416.18 × 10,914.45
  4. Step 4: Simplify right side
    19,866.78x = 299,232,525.80
  5. Step 5: Solve for x
    x = 299,232,525.80/19,866.78
  6. Step 6: Final answer
    x = 15,061.95

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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.