Home / 12,931.32-19,396.35-4,166.04

Finding the Fourth Proportional to 12,931.32, 19,396.35 and 4,166.04

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Solution

The fourth proportional to 12,931.32, 19,396.35 and 4,166.04 is: 6,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.32 : 19,396.35 = 4,166.04 : x
  2. Step 2: Convert to fraction form
    12,931.32/19,396.35 = 4,166.04/x
  3. Step 3: Cross multiply
    12,931.32x = 19,396.35 × 4,166.04
  4. Step 4: Simplify right side
    12,931.32x = 80,805,969.95
  5. Step 5: Solve for x
    x = 80,805,969.95/12,931.32
  6. Step 6: Final answer
    x = 6,248.86

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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.