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Finding the Fourth Proportional to 12,602.84, 18,899.48 and 3,715.74

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Solution

The fourth proportional to 12,602.84, 18,899.48 and 3,715.74 is: 5,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.84 : 18,899.48 = 3,715.74 : x
  2. Step 2: Convert to fraction form
    12,602.84/18,899.48 = 3,715.74/x
  3. Step 3: Cross multiply
    12,602.84x = 18,899.48 × 3,715.74
  4. Step 4: Simplify right side
    12,602.84x = 70,225,553.82
  5. Step 5: Solve for x
    x = 70,225,553.82/12,602.84
  6. Step 6: Final answer
    x = 5,572.20

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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.