Home / 13,442.34-20,165.58-6,864.96

Finding the Fourth Proportional to 13,442.34, 20,165.58 and 6,864.96

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Solution

The fourth proportional to 13,442.34, 20,165.58 and 6,864.96 is: 10,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.34 : 20,165.58 = 6,864.96 : x
  2. Step 2: Convert to fraction form
    13,442.34/20,165.58 = 6,864.96/x
  3. Step 3: Cross multiply
    13,442.34x = 20,165.58 × 6,864.96
  4. Step 4: Simplify right side
    13,442.34x = 138,435,900.08
  5. Step 5: Solve for x
    x = 138,435,900.08/13,442.34
  6. Step 6: Final answer
    x = 10,298.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.