Home / 14,740.74-20,342.30-8,772.62

Finding the Fourth Proportional to 14,740.74, 20,342.30 and 8,772.62

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Solution

The fourth proportional to 14,740.74, 20,342.30 and 8,772.62 is: 12,106.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.74 : 20,342.30 = 8,772.62 : x
  2. Step 2: Convert to fraction form
    14,740.74/20,342.30 = 8,772.62/x
  3. Step 3: Cross multiply
    14,740.74x = 20,342.30 × 8,772.62
  4. Step 4: Simplify right side
    14,740.74x = 178,455,122.25
  5. Step 5: Solve for x
    x = 178,455,122.25/14,740.74
  6. Step 6: Final answer
    x = 12,106.25

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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.