Home / 15,693.85-21,652.23-8,886.94

Finding the Fourth Proportional to 15,693.85, 21,652.23 and 8,886.94

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Solution

The fourth proportional to 15,693.85, 21,652.23 and 8,886.94 is: 12,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.85 : 21,652.23 = 8,886.94 : x
  2. Step 2: Convert to fraction form
    15,693.85/21,652.23 = 8,886.94/x
  3. Step 3: Cross multiply
    15,693.85x = 21,652.23 × 8,886.94
  4. Step 4: Simplify right side
    15,693.85x = 192,422,014.75
  5. Step 5: Solve for x
    x = 192,422,014.75/15,693.85
  6. Step 6: Final answer
    x = 12,260.98

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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.