Home / 14,970.72-20,658.68-8,256.64

Finding the Fourth Proportional to 14,970.72, 20,658.68 and 8,256.64

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Solution

The fourth proportional to 14,970.72, 20,658.68 and 8,256.64 is: 11,393.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.72 : 20,658.68 = 8,256.64 : x
  2. Step 2: Convert to fraction form
    14,970.72/20,658.68 = 8,256.64/x
  3. Step 3: Cross multiply
    14,970.72x = 20,658.68 × 8,256.64
  4. Step 4: Simplify right side
    14,970.72x = 170,571,283.64
  5. Step 5: Solve for x
    x = 170,571,283.64/14,970.72
  6. Step 6: Final answer
    x = 11,393.66

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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.