Home / 18,678.04-28,017.19-5,530.53

Finding the Fourth Proportional to 18,678.04, 28,017.19 and 5,530.53

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Solution

The fourth proportional to 18,678.04, 28,017.19 and 5,530.53 is: 8,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.04 : 28,017.19 = 5,530.53 : x
  2. Step 2: Convert to fraction form
    18,678.04/28,017.19 = 5,530.53/x
  3. Step 3: Cross multiply
    18,678.04x = 28,017.19 × 5,530.53
  4. Step 4: Simplify right side
    18,678.04x = 154,949,864.19
  5. Step 5: Solve for x
    x = 154,949,864.19/18,678.04
  6. Step 6: Final answer
    x = 8,295.83

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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.