Home / 12,419.68-17,130.34-7,633.34

Finding the Fourth Proportional to 12,419.68, 17,130.34 and 7,633.34

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Solution

The fourth proportional to 12,419.68, 17,130.34 and 7,633.34 is: 10,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.68 : 17,130.34 = 7,633.34 : x
  2. Step 2: Convert to fraction form
    12,419.68/17,130.34 = 7,633.34/x
  3. Step 3: Cross multiply
    12,419.68x = 17,130.34 × 7,633.34
  4. Step 4: Simplify right side
    12,419.68x = 130,761,623.88
  5. Step 5: Solve for x
    x = 130,761,623.88/12,419.68
  6. Step 6: Final answer
    x = 10,528.58

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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.