Home / 7,421.24-11,128.41-4,302.14

Finding the Fourth Proportional to 7,421.24, 11,128.41 and 4,302.14

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Solution

The fourth proportional to 7,421.24, 11,128.41 and 4,302.14 is: 6,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.24 : 11,128.41 = 4,302.14 : x
  2. Step 2: Convert to fraction form
    7,421.24/11,128.41 = 4,302.14/x
  3. Step 3: Cross multiply
    7,421.24x = 11,128.41 × 4,302.14
  4. Step 4: Simplify right side
    7,421.24x = 47,875,984.11
  5. Step 5: Solve for x
    x = 47,875,984.11/7,421.24
  6. Step 6: Final answer
    x = 6,451.21

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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.