Home / 15,460.28-21,335.20-8,745.77

Finding the Fourth Proportional to 15,460.28, 21,335.20 and 8,745.77

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Solution

The fourth proportional to 15,460.28, 21,335.20 and 8,745.77 is: 12,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.28 : 21,335.20 = 8,745.77 : x
  2. Step 2: Convert to fraction form
    15,460.28/21,335.20 = 8,745.77/x
  3. Step 3: Cross multiply
    15,460.28x = 21,335.20 × 8,745.77
  4. Step 4: Simplify right side
    15,460.28x = 186,592,601.70
  5. Step 5: Solve for x
    x = 186,592,601.70/15,460.28
  6. Step 6: Final answer
    x = 12,069.16

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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.