Home / 12,116.05-16,717.70-7,079.30

Finding the Fourth Proportional to 12,116.05, 16,717.70 and 7,079.30

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Solution

The fourth proportional to 12,116.05, 16,717.70 and 7,079.30 is: 9,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.05 : 16,717.70 = 7,079.30 : x
  2. Step 2: Convert to fraction form
    12,116.05/16,717.70 = 7,079.30/x
  3. Step 3: Cross multiply
    12,116.05x = 16,717.70 × 7,079.30
  4. Step 4: Simplify right side
    12,116.05x = 118,349,578.21
  5. Step 5: Solve for x
    x = 118,349,578.21/12,116.05
  6. Step 6: Final answer
    x = 9,768.00

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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.