Home / 15,668.32-21,622.08-8,953.87

Finding the Fourth Proportional to 15,668.32, 21,622.08 and 8,953.87

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Solution

The fourth proportional to 15,668.32, 21,622.08 and 8,953.87 is: 12,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.32 : 21,622.08 = 8,953.87 : x
  2. Step 2: Convert to fraction form
    15,668.32/21,622.08 = 8,953.87/x
  3. Step 3: Cross multiply
    15,668.32x = 21,622.08 × 8,953.87
  4. Step 4: Simplify right side
    15,668.32x = 193,601,293.45
  5. Step 5: Solve for x
    x = 193,601,293.45/15,668.32
  6. Step 6: Final answer
    x = 12,356.23

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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.