Home / 7,995.17-11,970.12-4,238.40

Finding the Fourth Proportional to 7,995.17, 11,970.12 and 4,238.40

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Solution

The fourth proportional to 7,995.17, 11,970.12 and 4,238.40 is: 6,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.17 : 11,970.12 = 4,238.40 : x
  2. Step 2: Convert to fraction form
    7,995.17/11,970.12 = 4,238.40/x
  3. Step 3: Cross multiply
    7,995.17x = 11,970.12 × 4,238.40
  4. Step 4: Simplify right side
    7,995.17x = 50,734,156.61
  5. Step 5: Solve for x
    x = 50,734,156.61/7,995.17
  6. Step 6: Final answer
    x = 6,345.60

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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.