Home / 14,657.76-20,226.44-8,688.48

Finding the Fourth Proportional to 14,657.76, 20,226.44 and 8,688.48

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Solution

The fourth proportional to 14,657.76, 20,226.44 and 8,688.48 is: 11,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.76 : 20,226.44 = 8,688.48 : x
  2. Step 2: Convert to fraction form
    14,657.76/20,226.44 = 8,688.48/x
  3. Step 3: Cross multiply
    14,657.76x = 20,226.44 × 8,688.48
  4. Step 4: Simplify right side
    14,657.76x = 175,737,019.41
  5. Step 5: Solve for x
    x = 175,737,019.41/14,657.76
  6. Step 6: Final answer
    x = 11,989.35

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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.