Home / 15,668.02-21,618.38-8,951.50

Finding the Fourth Proportional to 15,668.02, 21,618.38 and 8,951.50

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Solution

The fourth proportional to 15,668.02, 21,618.38 and 8,951.50 is: 12,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.02 : 21,618.38 = 8,951.50 : x
  2. Step 2: Convert to fraction form
    15,668.02/21,618.38 = 8,951.50/x
  3. Step 3: Cross multiply
    15,668.02x = 21,618.38 × 8,951.50
  4. Step 4: Simplify right side
    15,668.02x = 193,516,928.57
  5. Step 5: Solve for x
    x = 193,516,928.57/15,668.02
  6. Step 6: Final answer
    x = 12,351.08

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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.