Home / 18,336.24-27,479.52-13,130.64

Finding the Fourth Proportional to 18,336.24, 27,479.52 and 13,130.64

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Solution

The fourth proportional to 18,336.24, 27,479.52 and 13,130.64 is: 19,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.24 : 27,479.52 = 13,130.64 : x
  2. Step 2: Convert to fraction form
    18,336.24/27,479.52 = 13,130.64/x
  3. Step 3: Cross multiply
    18,336.24x = 27,479.52 × 13,130.64
  4. Step 4: Simplify right side
    18,336.24x = 360,823,684.49
  5. Step 5: Solve for x
    x = 360,823,684.49/18,336.24
  6. Step 6: Final answer
    x = 19,678.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.