Home / 12,881.04-19,322.91-3,521.76

Finding the Fourth Proportional to 12,881.04, 19,322.91 and 3,521.76

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Solution

The fourth proportional to 12,881.04, 19,322.91 and 3,521.76 is: 5,283.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.04 : 19,322.91 = 3,521.76 : x
  2. Step 2: Convert to fraction form
    12,881.04/19,322.91 = 3,521.76/x
  3. Step 3: Cross multiply
    12,881.04x = 19,322.91 × 3,521.76
  4. Step 4: Simplify right side
    12,881.04x = 68,050,651.52
  5. Step 5: Solve for x
    x = 68,050,651.52/12,881.04
  6. Step 6: Final answer
    x = 5,283.01

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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.