Home / 15,624.72-21,561.98-8,910.62

Finding the Fourth Proportional to 15,624.72, 21,561.98 and 8,910.62

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Solution

The fourth proportional to 15,624.72, 21,561.98 and 8,910.62 is: 12,296.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.72 : 21,561.98 = 8,910.62 : x
  2. Step 2: Convert to fraction form
    15,624.72/21,561.98 = 8,910.62/x
  3. Step 3: Cross multiply
    15,624.72x = 21,561.98 × 8,910.62
  4. Step 4: Simplify right side
    15,624.72x = 192,130,610.23
  5. Step 5: Solve for x
    x = 192,130,610.23/15,624.72
  6. Step 6: Final answer
    x = 12,296.58

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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.