Home / 12,656.04-17,459.35-8,181.19

Finding the Fourth Proportional to 12,656.04, 17,459.35 and 8,181.19

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Solution

The fourth proportional to 12,656.04, 17,459.35 and 8,181.19 is: 11,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.04 : 17,459.35 = 8,181.19 : x
  2. Step 2: Convert to fraction form
    12,656.04/17,459.35 = 8,181.19/x
  3. Step 3: Cross multiply
    12,656.04x = 17,459.35 × 8,181.19
  4. Step 4: Simplify right side
    12,656.04x = 142,838,259.63
  5. Step 5: Solve for x
    x = 142,838,259.63/12,656.04
  6. Step 6: Final answer
    x = 11,286.17

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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.