Home / 15,618.02-21,550.93-8,902.80

Finding the Fourth Proportional to 15,618.02, 21,550.93 and 8,902.80

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Solution

The fourth proportional to 15,618.02, 21,550.93 and 8,902.80 is: 12,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.02 : 21,550.93 = 8,902.80 : x
  2. Step 2: Convert to fraction form
    15,618.02/21,550.93 = 8,902.80/x
  3. Step 3: Cross multiply
    15,618.02x = 21,550.93 × 8,902.80
  4. Step 4: Simplify right side
    15,618.02x = 191,863,597.35
  5. Step 5: Solve for x
    x = 191,863,597.35/15,618.02
  6. Step 6: Final answer
    x = 12,284.76

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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.