Home / 7,421.88-11,124.72-4,499.40

Finding the Fourth Proportional to 7,421.88, 11,124.72 and 4,499.40

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Solution

The fourth proportional to 7,421.88, 11,124.72 and 4,499.40 is: 6,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.88 : 11,124.72 = 4,499.40 : x
  2. Step 2: Convert to fraction form
    7,421.88/11,124.72 = 4,499.40/x
  3. Step 3: Cross multiply
    7,421.88x = 11,124.72 × 4,499.40
  4. Step 4: Simplify right side
    7,421.88x = 50,054,565.17
  5. Step 5: Solve for x
    x = 50,054,565.17/7,421.88
  6. Step 6: Final answer
    x = 6,744.19

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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.