Home / 8,343.90-12,518.28-3,955.32

Finding the Fourth Proportional to 8,343.90, 12,518.28 and 3,955.32

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Solution

The fourth proportional to 8,343.90, 12,518.28 and 3,955.32 is: 5,934.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.90 : 12,518.28 = 3,955.32 : x
  2. Step 2: Convert to fraction form
    8,343.90/12,518.28 = 3,955.32/x
  3. Step 3: Cross multiply
    8,343.90x = 12,518.28 × 3,955.32
  4. Step 4: Simplify right side
    8,343.90x = 49,513,803.25
  5. Step 5: Solve for x
    x = 49,513,803.25/8,343.90
  6. Step 6: Final answer
    x = 5,934.13

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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.