Home / 7,620.16-10,515.36-4,433.20

Finding the Fourth Proportional to 7,620.16, 10,515.36 and 4,433.20

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Solution

The fourth proportional to 7,620.16, 10,515.36 and 4,433.20 is: 6,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.16 : 10,515.36 = 4,433.20 : x
  2. Step 2: Convert to fraction form
    7,620.16/10,515.36 = 4,433.20/x
  3. Step 3: Cross multiply
    7,620.16x = 10,515.36 × 4,433.20
  4. Step 4: Simplify right side
    7,620.16x = 46,616,693.95
  5. Step 5: Solve for x
    x = 46,616,693.95/7,620.16
  6. Step 6: Final answer
    x = 6,117.55

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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.