Home / 14,695.21-20,273.67-8,320.33

Finding the Fourth Proportional to 14,695.21, 20,273.67 and 8,320.33

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Solution

The fourth proportional to 14,695.21, 20,273.67 and 8,320.33 is: 11,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.21 : 20,273.67 = 8,320.33 : x
  2. Step 2: Convert to fraction form
    14,695.21/20,273.67 = 8,320.33/x
  3. Step 3: Cross multiply
    14,695.21x = 20,273.67 × 8,320.33
  4. Step 4: Simplify right side
    14,695.21x = 168,683,655.16
  5. Step 5: Solve for x
    x = 168,683,655.16/14,695.21
  6. Step 6: Final answer
    x = 11,478.82

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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.