Home / 10,305.68-15,457.80-5,909.36

Finding the Fourth Proportional to 10,305.68, 15,457.80 and 5,909.36

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Solution

The fourth proportional to 10,305.68, 15,457.80 and 5,909.36 is: 8,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.68 : 15,457.80 = 5,909.36 : x
  2. Step 2: Convert to fraction form
    10,305.68/15,457.80 = 5,909.36/x
  3. Step 3: Cross multiply
    10,305.68x = 15,457.80 × 5,909.36
  4. Step 4: Simplify right side
    10,305.68x = 91,345,705.01
  5. Step 5: Solve for x
    x = 91,345,705.01/10,305.68
  6. Step 6: Final answer
    x = 8,863.63

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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.