Home / 14,147.28-21,220.74-8,602.14

Finding the Fourth Proportional to 14,147.28, 21,220.74 and 8,602.14

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Solution

The fourth proportional to 14,147.28, 21,220.74 and 8,602.14 is: 12,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.28 : 21,220.74 = 8,602.14 : x
  2. Step 2: Convert to fraction form
    14,147.28/21,220.74 = 8,602.14/x
  3. Step 3: Cross multiply
    14,147.28x = 21,220.74 × 8,602.14
  4. Step 4: Simplify right side
    14,147.28x = 182,543,776.38
  5. Step 5: Solve for x
    x = 182,543,776.38/14,147.28
  6. Step 6: Final answer
    x = 12,903.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.