Home / 15,624.18-21,561.74-8,910.45

Finding the Fourth Proportional to 15,624.18, 21,561.74 and 8,910.45

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Solution

The fourth proportional to 15,624.18, 21,561.74 and 8,910.45 is: 12,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.18 : 21,561.74 = 8,910.45 : x
  2. Step 2: Convert to fraction form
    15,624.18/21,561.74 = 8,910.45/x
  3. Step 3: Cross multiply
    15,624.18x = 21,561.74 × 8,910.45
  4. Step 4: Simplify right side
    15,624.18x = 192,124,806.18
  5. Step 5: Solve for x
    x = 192,124,806.18/15,624.18
  6. Step 6: Final answer
    x = 12,296.63

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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.