Home / 19,639.16-27,101.59-10,686.68

Finding the Fourth Proportional to 19,639.16, 27,101.59 and 10,686.68

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Solution

The fourth proportional to 19,639.16, 27,101.59 and 10,686.68 is: 14,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.16 : 27,101.59 = 10,686.68 : x
  2. Step 2: Convert to fraction form
    19,639.16/27,101.59 = 10,686.68/x
  3. Step 3: Cross multiply
    19,639.16x = 27,101.59 × 10,686.68
  4. Step 4: Simplify right side
    19,639.16x = 289,625,966.39
  5. Step 5: Solve for x
    x = 289,625,966.39/19,639.16
  6. Step 6: Final answer
    x = 14,747.37

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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.