Home / 18,797.06-28,186.38-7,700.74

Finding the Fourth Proportional to 18,797.06, 28,186.38 and 7,700.74

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Solution

The fourth proportional to 18,797.06, 28,186.38 and 7,700.74 is: 11,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.06 : 28,186.38 = 7,700.74 : x
  2. Step 2: Convert to fraction form
    18,797.06/28,186.38 = 7,700.74/x
  3. Step 3: Cross multiply
    18,797.06x = 28,186.38 × 7,700.74
  4. Step 4: Simplify right side
    18,797.06x = 217,055,913.46
  5. Step 5: Solve for x
    x = 217,055,913.46/18,797.06
  6. Step 6: Final answer
    x = 11,547.33

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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.