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Finding the Fourth Proportional to 15,602.95, 21,532.13 and 8,529.49

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Solution

The fourth proportional to 15,602.95, 21,532.13 and 8,529.49 is: 11,770.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,602.95 : 21,532.13 = 8,529.49 : x
  2. Step 2: Convert to fraction form
    15,602.95/21,532.13 = 8,529.49/x
  3. Step 3: Cross multiply
    15,602.95x = 21,532.13 × 8,529.49
  4. Step 4: Simplify right side
    15,602.95x = 183,658,087.51
  5. Step 5: Solve for x
    x = 183,658,087.51/15,602.95
  6. Step 6: Final answer
    x = 11,770.73

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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.