Home / 12,211.32-18,316.98-2,977.32

Finding the Fourth Proportional to 12,211.32, 18,316.98 and 2,977.32

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Solution

The fourth proportional to 12,211.32, 18,316.98 and 2,977.32 is: 4,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.32 : 18,316.98 = 2,977.32 : x
  2. Step 2: Convert to fraction form
    12,211.32/18,316.98 = 2,977.32/x
  3. Step 3: Cross multiply
    12,211.32x = 18,316.98 × 2,977.32
  4. Step 4: Simplify right side
    12,211.32x = 54,535,510.89
  5. Step 5: Solve for x
    x = 54,535,510.89/12,211.32
  6. Step 6: Final answer
    x = 4,465.98

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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.