Home / 19,639.20-27,095.20-11,140.16

Finding the Fourth Proportional to 19,639.20, 27,095.20 and 11,140.16

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Solution

The fourth proportional to 19,639.20, 27,095.20 and 11,140.16 is: 15,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.20 : 27,095.20 = 11,140.16 : x
  2. Step 2: Convert to fraction form
    19,639.20/27,095.20 = 11,140.16/x
  3. Step 3: Cross multiply
    19,639.20x = 27,095.20 × 11,140.16
  4. Step 4: Simplify right side
    19,639.20x = 301,844,863.23
  5. Step 5: Solve for x
    x = 301,844,863.23/19,639.20
  6. Step 6: Final answer
    x = 15,369.51

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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.