Home / 13,457.08-20,175.55-9,285.18

Finding the Fourth Proportional to 13,457.08, 20,175.55 and 9,285.18

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Solution

The fourth proportional to 13,457.08, 20,175.55 and 9,285.18 is: 13,920.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.08 : 20,175.55 = 9,285.18 : x
  2. Step 2: Convert to fraction form
    13,457.08/20,175.55 = 9,285.18/x
  3. Step 3: Cross multiply
    13,457.08x = 20,175.55 × 9,285.18
  4. Step 4: Simplify right side
    13,457.08x = 187,333,514.48
  5. Step 5: Solve for x
    x = 187,333,514.48/13,457.08
  6. Step 6: Final answer
    x = 13,920.81

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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.