Home / 7,515.12-10,367.28-4,720.08

Finding the Fourth Proportional to 7,515.12, 10,367.28 and 4,720.08

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Solution

The fourth proportional to 7,515.12, 10,367.28 and 4,720.08 is: 6,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.12 : 10,367.28 = 4,720.08 : x
  2. Step 2: Convert to fraction form
    7,515.12/10,367.28 = 4,720.08/x
  3. Step 3: Cross multiply
    7,515.12x = 10,367.28 × 4,720.08
  4. Step 4: Simplify right side
    7,515.12x = 48,934,390.98
  5. Step 5: Solve for x
    x = 48,934,390.98/7,515.12
  6. Step 6: Final answer
    x = 6,511.46

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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.