Home / 10,412.25-15,618.72-2,621.07

Finding the Fourth Proportional to 10,412.25, 15,618.72 and 2,621.07

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Solution

The fourth proportional to 10,412.25, 15,618.72 and 2,621.07 is: 3,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.25 : 15,618.72 = 2,621.07 : x
  2. Step 2: Convert to fraction form
    10,412.25/15,618.72 = 2,621.07/x
  3. Step 3: Cross multiply
    10,412.25x = 15,618.72 × 2,621.07
  4. Step 4: Simplify right side
    10,412.25x = 40,937,758.43
  5. Step 5: Solve for x
    x = 40,937,758.43/10,412.25
  6. Step 6: Final answer
    x = 3,931.69

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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.