Home / 13,435.17-18,534.96-9,179.35

Finding the Fourth Proportional to 13,435.17, 18,534.96 and 9,179.35

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Solution

The fourth proportional to 13,435.17, 18,534.96 and 9,179.35 is: 12,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.17 : 18,534.96 = 9,179.35 : x
  2. Step 2: Convert to fraction form
    13,435.17/18,534.96 = 9,179.35/x
  3. Step 3: Cross multiply
    13,435.17x = 18,534.96 × 9,179.35
  4. Step 4: Simplify right side
    13,435.17x = 170,138,885.08
  5. Step 5: Solve for x
    x = 170,138,885.08/13,435.17
  6. Step 6: Final answer
    x = 12,663.69

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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.