Home / 10,412.12-15,614.40-3,485

Finding the Fourth Proportional to 10,412.12, 15,614.40 and 3,485

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Solution

The fourth proportional to 10,412.12, 15,614.40 and 3,485 is: 5,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.12 : 15,614.40 = 3,485 : x
  2. Step 2: Convert to fraction form
    10,412.12/15,614.40 = 3,485/x
  3. Step 3: Cross multiply
    10,412.12x = 15,614.40 × 3,485
  4. Step 4: Simplify right side
    10,412.12x = 54,416,184
  5. Step 5: Solve for x
    x = 54,416,184/10,412.12
  6. Step 6: Final answer
    x = 5,226.23

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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.