Home / 12,703.20-17,530.40-7,114.24

Finding the Fourth Proportional to 12,703.20, 17,530.40 and 7,114.24

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Solution

The fourth proportional to 12,703.20, 17,530.40 and 7,114.24 is: 9,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.20 : 17,530.40 = 7,114.24 : x
  2. Step 2: Convert to fraction form
    12,703.20/17,530.40 = 7,114.24/x
  3. Step 3: Cross multiply
    12,703.20x = 17,530.40 × 7,114.24
  4. Step 4: Simplify right side
    12,703.20x = 124,715,472.90
  5. Step 5: Solve for x
    x = 124,715,472.90/12,703.20
  6. Step 6: Final answer
    x = 9,817.64

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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.