Home / 18,866.04-28,298.08-7,019.79

Finding the Fourth Proportional to 18,866.04, 28,298.08 and 7,019.79

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Solution

The fourth proportional to 18,866.04, 28,298.08 and 7,019.79 is: 10,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.04 : 28,298.08 = 7,019.79 : x
  2. Step 2: Convert to fraction form
    18,866.04/28,298.08 = 7,019.79/x
  3. Step 3: Cross multiply
    18,866.04x = 28,298.08 × 7,019.79
  4. Step 4: Simplify right side
    18,866.04x = 198,646,579.00
  5. Step 5: Solve for x
    x = 198,646,579.00/18,866.04
  6. Step 6: Final answer
    x = 10,529.32

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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.