Home / 12,055.10-18,085.35-4,658.90

Finding the Fourth Proportional to 12,055.10, 18,085.35 and 4,658.90

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Solution

The fourth proportional to 12,055.10, 18,085.35 and 4,658.90 is: 6,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,055.10 : 18,085.35 = 4,658.90 : x
  2. Step 2: Convert to fraction form
    12,055.10/18,085.35 = 4,658.90/x
  3. Step 3: Cross multiply
    12,055.10x = 18,085.35 × 4,658.90
  4. Step 4: Simplify right side
    12,055.10x = 84,257,837.12
  5. Step 5: Solve for x
    x = 84,257,837.12/12,055.10
  6. Step 6: Final answer
    x = 6,989.39

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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.