Home / 15,558.46-21,477.90-9,182.95

Finding the Fourth Proportional to 15,558.46, 21,477.90 and 9,182.95

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Solution

The fourth proportional to 15,558.46, 21,477.90 and 9,182.95 is: 12,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.46 : 21,477.90 = 9,182.95 : x
  2. Step 2: Convert to fraction form
    15,558.46/21,477.90 = 9,182.95/x
  3. Step 3: Cross multiply
    15,558.46x = 21,477.90 × 9,182.95
  4. Step 4: Simplify right side
    15,558.46x = 197,230,481.81
  5. Step 5: Solve for x
    x = 197,230,481.81/15,558.46
  6. Step 6: Final answer
    x = 12,676.74

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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.