Home / 15,038.33-20,753.64-8,665.92

Finding the Fourth Proportional to 15,038.33, 20,753.64 and 8,665.92

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Solution

The fourth proportional to 15,038.33, 20,753.64 and 8,665.92 is: 11,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.33 : 20,753.64 = 8,665.92 : x
  2. Step 2: Convert to fraction form
    15,038.33/20,753.64 = 8,665.92/x
  3. Step 3: Cross multiply
    15,038.33x = 20,753.64 × 8,665.92
  4. Step 4: Simplify right side
    15,038.33x = 179,849,383.95
  5. Step 5: Solve for x
    x = 179,849,383.95/15,038.33
  6. Step 6: Final answer
    x = 11,959.40

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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.