Home / 14,875.05-20,528.22-8,905.58

Finding the Fourth Proportional to 14,875.05, 20,528.22 and 8,905.58

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Solution

The fourth proportional to 14,875.05, 20,528.22 and 8,905.58 is: 12,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,875.05 : 20,528.22 = 8,905.58 : x
  2. Step 2: Convert to fraction form
    14,875.05/20,528.22 = 8,905.58/x
  3. Step 3: Cross multiply
    14,875.05x = 20,528.22 × 8,905.58
  4. Step 4: Simplify right side
    14,875.05x = 182,815,705.47
  5. Step 5: Solve for x
    x = 182,815,705.47/14,875.05
  6. Step 6: Final answer
    x = 12,290.09

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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.