Home / 11,320.43-15,621.43-6,284.40

Finding the Fourth Proportional to 11,320.43, 15,621.43 and 6,284.40

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Solution

The fourth proportional to 11,320.43, 15,621.43 and 6,284.40 is: 8,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.43 : 15,621.43 = 6,284.40 : x
  2. Step 2: Convert to fraction form
    11,320.43/15,621.43 = 6,284.40/x
  3. Step 3: Cross multiply
    11,320.43x = 15,621.43 × 6,284.40
  4. Step 4: Simplify right side
    11,320.43x = 98,171,314.69
  5. Step 5: Solve for x
    x = 98,171,314.69/11,320.43
  6. Step 6: Final answer
    x = 8,672.05

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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.