Home / 15,638.07-21,581.06-8,564.88

Finding the Fourth Proportional to 15,638.07, 21,581.06 and 8,564.88

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Solution

The fourth proportional to 15,638.07, 21,581.06 and 8,564.88 is: 11,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.07 : 21,581.06 = 8,564.88 : x
  2. Step 2: Convert to fraction form
    15,638.07/21,581.06 = 8,564.88/x
  3. Step 3: Cross multiply
    15,638.07x = 21,581.06 × 8,564.88
  4. Step 4: Simplify right side
    15,638.07x = 184,839,146.35
  5. Step 5: Solve for x
    x = 184,839,146.35/15,638.07
  6. Step 6: Final answer
    x = 11,819.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.