Home / 11,985.08-16,539.56-6,881.40

Finding the Fourth Proportional to 11,985.08, 16,539.56 and 6,881.40

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Solution

The fourth proportional to 11,985.08, 16,539.56 and 6,881.40 is: 9,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985.08 : 16,539.56 = 6,881.40 : x
  2. Step 2: Convert to fraction form
    11,985.08/16,539.56 = 6,881.40/x
  3. Step 3: Cross multiply
    11,985.08x = 16,539.56 × 6,881.40
  4. Step 4: Simplify right side
    11,985.08x = 113,815,328.18
  5. Step 5: Solve for x
    x = 113,815,328.18/11,985.08
  6. Step 6: Final answer
    x = 9,496.42

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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.