Home / 13,442.08-20,159.04-9,308.64

Finding the Fourth Proportional to 13,442.08, 20,159.04 and 9,308.64

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Solution

The fourth proportional to 13,442.08, 20,159.04 and 9,308.64 is: 13,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.08 : 20,159.04 = 9,308.64 : x
  2. Step 2: Convert to fraction form
    13,442.08/20,159.04 = 9,308.64/x
  3. Step 3: Cross multiply
    13,442.08x = 20,159.04 × 9,308.64
  4. Step 4: Simplify right side
    13,442.08x = 187,653,246.11
  5. Step 5: Solve for x
    x = 187,653,246.11/13,442.08
  6. Step 6: Final answer
    x = 13,960.13

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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.