Home / 13,253.52-19,880.08-3,392.72

Finding the Fourth Proportional to 13,253.52, 19,880.08 and 3,392.72

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Solution

The fourth proportional to 13,253.52, 19,880.08 and 3,392.72 is: 5,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.52 : 19,880.08 = 3,392.72 : x
  2. Step 2: Convert to fraction form
    13,253.52/19,880.08 = 3,392.72/x
  3. Step 3: Cross multiply
    13,253.52x = 19,880.08 × 3,392.72
  4. Step 4: Simplify right side
    13,253.52x = 67,447,437.14
  5. Step 5: Solve for x
    x = 67,447,437.14/13,253.52
  6. Step 6: Final answer
    x = 5,089.02

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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.