Home / 15,299.37-21,113.22-8,585.28

Finding the Fourth Proportional to 15,299.37, 21,113.22 and 8,585.28

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Solution

The fourth proportional to 15,299.37, 21,113.22 and 8,585.28 is: 11,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.37 : 21,113.22 = 8,585.28 : x
  2. Step 2: Convert to fraction form
    15,299.37/21,113.22 = 8,585.28/x
  3. Step 3: Cross multiply
    15,299.37x = 21,113.22 × 8,585.28
  4. Step 4: Simplify right side
    15,299.37x = 181,262,905.40
  5. Step 5: Solve for x
    x = 181,262,905.40/15,299.37
  6. Step 6: Final answer
    x = 11,847.74

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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.