Home / 13,013.52-19,521.08-5,221.32

Finding the Fourth Proportional to 13,013.52, 19,521.08 and 5,221.32

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Solution

The fourth proportional to 13,013.52, 19,521.08 and 5,221.32 is: 7,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.52 : 19,521.08 = 5,221.32 : x
  2. Step 2: Convert to fraction form
    13,013.52/19,521.08 = 5,221.32/x
  3. Step 3: Cross multiply
    13,013.52x = 19,521.08 × 5,221.32
  4. Step 4: Simplify right side
    13,013.52x = 101,925,805.43
  5. Step 5: Solve for x
    x = 101,925,805.43/13,013.52
  6. Step 6: Final answer
    x = 7,832.30

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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.