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Finding the Fourth Proportional to 15,607.95, 21,538.87 and 8,893.52

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Solution

The fourth proportional to 15,607.95, 21,538.87 and 8,893.52 is: 12,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.95 : 21,538.87 = 8,893.52 : x
  2. Step 2: Convert to fraction form
    15,607.95/21,538.87 = 8,893.52/x
  3. Step 3: Cross multiply
    15,607.95x = 21,538.87 × 8,893.52
  4. Step 4: Simplify right side
    15,607.95x = 191,556,371.12
  5. Step 5: Solve for x
    x = 191,556,371.12/15,607.95
  6. Step 6: Final answer
    x = 12,273.00

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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.