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Finding the Fourth Proportional to 15,575.95, 21,494.59 and 8,501.95

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Solution

The fourth proportional to 15,575.95, 21,494.59 and 8,501.95 is: 11,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.95 : 21,494.59 = 8,501.95 : x
  2. Step 2: Convert to fraction form
    15,575.95/21,494.59 = 8,501.95/x
  3. Step 3: Cross multiply
    15,575.95x = 21,494.59 × 8,501.95
  4. Step 4: Simplify right side
    15,575.95x = 182,745,929.45
  5. Step 5: Solve for x
    x = 182,745,929.45/15,575.95
  6. Step 6: Final answer
    x = 11,732.57

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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.