Home / 12,888.62-19,332.91-3,528.72

Finding the Fourth Proportional to 12,888.62, 19,332.91 and 3,528.72

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Solution

The fourth proportional to 12,888.62, 19,332.91 and 3,528.72 is: 5,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.62 : 19,332.91 = 3,528.72 : x
  2. Step 2: Convert to fraction form
    12,888.62/19,332.91 = 3,528.72/x
  3. Step 3: Cross multiply
    12,888.62x = 19,332.91 × 3,528.72
  4. Step 4: Simplify right side
    12,888.62x = 68,220,426.18
  5. Step 5: Solve for x
    x = 68,220,426.18/12,888.62
  6. Step 6: Final answer
    x = 5,293.07

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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.