Home / 11,420.68-15,758.40-6,703.24

Finding the Fourth Proportional to 11,420.68, 15,758.40 and 6,703.24

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Solution

The fourth proportional to 11,420.68, 15,758.40 and 6,703.24 is: 9,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.68 : 15,758.40 = 6,703.24 : x
  2. Step 2: Convert to fraction form
    11,420.68/15,758.40 = 6,703.24/x
  3. Step 3: Cross multiply
    11,420.68x = 15,758.40 × 6,703.24
  4. Step 4: Simplify right side
    11,420.68x = 105,632,337.22
  5. Step 5: Solve for x
    x = 105,632,337.22/11,420.68
  6. Step 6: Final answer
    x = 9,249.22

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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.