Home / 15,650.86-21,592.68-8,931.64

Finding the Fourth Proportional to 15,650.86, 21,592.68 and 8,931.64

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Solution

The fourth proportional to 15,650.86, 21,592.68 and 8,931.64 is: 12,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.86 : 21,592.68 = 8,931.64 : x
  2. Step 2: Convert to fraction form
    15,650.86/21,592.68 = 8,931.64/x
  3. Step 3: Cross multiply
    15,650.86x = 21,592.68 × 8,931.64
  4. Step 4: Simplify right side
    15,650.86x = 192,858,044.40
  5. Step 5: Solve for x
    x = 192,858,044.40/15,650.86
  6. Step 6: Final answer
    x = 12,322.52

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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.