Home / 18,870.03-28,298.57-7,186.59

Finding the Fourth Proportional to 18,870.03, 28,298.57 and 7,186.59

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Solution

The fourth proportional to 18,870.03, 28,298.57 and 7,186.59 is: 10,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.03 : 28,298.57 = 7,186.59 : x
  2. Step 2: Convert to fraction form
    18,870.03/28,298.57 = 7,186.59/x
  3. Step 3: Cross multiply
    18,870.03x = 28,298.57 × 7,186.59
  4. Step 4: Simplify right side
    18,870.03x = 203,370,184.24
  5. Step 5: Solve for x
    x = 203,370,184.24/18,870.03
  6. Step 6: Final answer
    x = 10,777.42

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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.