Home / 7,429.29-11,144.28-4,139.91

Finding the Fourth Proportional to 7,429.29, 11,144.28 and 4,139.91

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Solution

The fourth proportional to 7,429.29, 11,144.28 and 4,139.91 is: 6,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.29 : 11,144.28 = 4,139.91 : x
  2. Step 2: Convert to fraction form
    7,429.29/11,144.28 = 4,139.91/x
  3. Step 3: Cross multiply
    7,429.29x = 11,144.28 × 4,139.91
  4. Step 4: Simplify right side
    7,429.29x = 46,136,316.21
  5. Step 5: Solve for x
    x = 46,136,316.21/7,429.29
  6. Step 6: Final answer
    x = 6,210.06

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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.