Home / 11,547.87-17,321.81-4,620.75

Finding the Fourth Proportional to 11,547.87, 17,321.81 and 4,620.75

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Solution

The fourth proportional to 11,547.87, 17,321.81 and 4,620.75 is: 6,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,547.87 : 17,321.81 = 4,620.75 : x
  2. Step 2: Convert to fraction form
    11,547.87/17,321.81 = 4,620.75/x
  3. Step 3: Cross multiply
    11,547.87x = 17,321.81 × 4,620.75
  4. Step 4: Simplify right side
    11,547.87x = 80,039,730.45
  5. Step 5: Solve for x
    x = 80,039,730.45/11,547.87
  6. Step 6: Final answer
    x = 6,931.13

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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.