Home / 10,080.84-15,108.12-5,146.32

Finding the Fourth Proportional to 10,080.84, 15,108.12 and 5,146.32

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Solution

The fourth proportional to 10,080.84, 15,108.12 and 5,146.32 is: 7,712.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.84 : 15,108.12 = 5,146.32 : x
  2. Step 2: Convert to fraction form
    10,080.84/15,108.12 = 5,146.32/x
  3. Step 3: Cross multiply
    10,080.84x = 15,108.12 × 5,146.32
  4. Step 4: Simplify right side
    10,080.84x = 77,751,220.12
  5. Step 5: Solve for x
    x = 77,751,220.12/10,080.84
  6. Step 6: Final answer
    x = 7,712.77

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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.