Home / 15,603.62-23,402.88-5,215.34

Finding the Fourth Proportional to 15,603.62, 23,402.88 and 5,215.34

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Solution

The fourth proportional to 15,603.62, 23,402.88 and 5,215.34 is: 7,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.62 : 23,402.88 = 5,215.34 : x
  2. Step 2: Convert to fraction form
    15,603.62/23,402.88 = 5,215.34/x
  3. Step 3: Cross multiply
    15,603.62x = 23,402.88 × 5,215.34
  4. Step 4: Simplify right side
    15,603.62x = 122,053,976.18
  5. Step 5: Solve for x
    x = 122,053,976.18/15,603.62
  6. Step 6: Final answer
    x = 7,822.16

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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.