Home / 14,745.15-20,355.26-8,693.55

Finding the Fourth Proportional to 14,745.15, 20,355.26 and 8,693.55

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Solution

The fourth proportional to 14,745.15, 20,355.26 and 8,693.55 is: 12,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.15 : 20,355.26 = 8,693.55 : x
  2. Step 2: Convert to fraction form
    14,745.15/20,355.26 = 8,693.55/x
  3. Step 3: Cross multiply
    14,745.15x = 20,355.26 × 8,693.55
  4. Step 4: Simplify right side
    14,745.15x = 176,959,427.11
  5. Step 5: Solve for x
    x = 176,959,427.11/14,745.15
  6. Step 6: Final answer
    x = 12,001.20

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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.