Home / 18,855.40-28,271.47-6,374.24

Finding the Fourth Proportional to 18,855.40, 28,271.47 and 6,374.24

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Solution

The fourth proportional to 18,855.40, 28,271.47 and 6,374.24 is: 9,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.40 : 28,271.47 = 6,374.24 : x
  2. Step 2: Convert to fraction form
    18,855.40/28,271.47 = 6,374.24/x
  3. Step 3: Cross multiply
    18,855.40x = 28,271.47 × 6,374.24
  4. Step 4: Simplify right side
    18,855.40x = 180,209,134.93
  5. Step 5: Solve for x
    x = 180,209,134.93/18,855.40
  6. Step 6: Final answer
    x = 9,557.43

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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.