Home / 18,345.12-27,521.88-6,658.34

Finding the Fourth Proportional to 18,345.12, 27,521.88 and 6,658.34

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Solution

The fourth proportional to 18,345.12, 27,521.88 and 6,658.34 is: 9,989.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.12 : 27,521.88 = 6,658.34 : x
  2. Step 2: Convert to fraction form
    18,345.12/27,521.88 = 6,658.34/x
  3. Step 3: Cross multiply
    18,345.12x = 27,521.88 × 6,658.34
  4. Step 4: Simplify right side
    18,345.12x = 183,249,871.90
  5. Step 5: Solve for x
    x = 183,249,871.90/18,345.12
  6. Step 6: Final answer
    x = 9,989.03

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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.