Home / 12,117.34-16,715.09-7,080.49

Finding the Fourth Proportional to 12,117.34, 16,715.09 and 7,080.49

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Solution

The fourth proportional to 12,117.34, 16,715.09 and 7,080.49 is: 9,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.34 : 16,715.09 = 7,080.49 : x
  2. Step 2: Convert to fraction form
    12,117.34/16,715.09 = 7,080.49/x
  3. Step 3: Cross multiply
    12,117.34x = 16,715.09 × 7,080.49
  4. Step 4: Simplify right side
    12,117.34x = 118,350,961.72
  5. Step 5: Solve for x
    x = 118,350,961.72/12,117.34
  6. Step 6: Final answer
    x = 9,767.08

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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.