Home / 12,205.12-18,306.06-4,807.66

Finding the Fourth Proportional to 12,205.12, 18,306.06 and 4,807.66

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Solution

The fourth proportional to 12,205.12, 18,306.06 and 4,807.66 is: 7,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.12 : 18,306.06 = 4,807.66 : x
  2. Step 2: Convert to fraction form
    12,205.12/18,306.06 = 4,807.66/x
  3. Step 3: Cross multiply
    12,205.12x = 18,306.06 × 4,807.66
  4. Step 4: Simplify right side
    12,205.12x = 88,009,312.42
  5. Step 5: Solve for x
    x = 88,009,312.42/12,205.12
  6. Step 6: Final answer
    x = 7,210.85

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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.