Home / 18,618.24-27,929.76-6,139.52

Finding the Fourth Proportional to 18,618.24, 27,929.76 and 6,139.52

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Solution

The fourth proportional to 18,618.24, 27,929.76 and 6,139.52 is: 9,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.24 : 27,929.76 = 6,139.52 : x
  2. Step 2: Convert to fraction form
    18,618.24/27,929.76 = 6,139.52/x
  3. Step 3: Cross multiply
    18,618.24x = 27,929.76 × 6,139.52
  4. Step 4: Simplify right side
    18,618.24x = 171,475,320.12
  5. Step 5: Solve for x
    x = 171,475,320.12/18,618.24
  6. Step 6: Final answer
    x = 9,210.07

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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.