Home / 12,116.17-18,165.75-4,714.39

Finding the Fourth Proportional to 12,116.17, 18,165.75 and 4,714.39

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Solution

The fourth proportional to 12,116.17, 18,165.75 and 4,714.39 is: 7,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.17 : 18,165.75 = 4,714.39 : x
  2. Step 2: Convert to fraction form
    12,116.17/18,165.75 = 4,714.39/x
  3. Step 3: Cross multiply
    12,116.17x = 18,165.75 × 4,714.39
  4. Step 4: Simplify right side
    12,116.17x = 85,640,430.14
  5. Step 5: Solve for x
    x = 85,640,430.14/12,116.17
  6. Step 6: Final answer
    x = 7,068.28

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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.