Home / 13,655.91-20,457.62-8,375.52

Finding the Fourth Proportional to 13,655.91, 20,457.62 and 8,375.52

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Solution

The fourth proportional to 13,655.91, 20,457.62 and 8,375.52 is: 12,547.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.91 : 20,457.62 = 8,375.52 : x
  2. Step 2: Convert to fraction form
    13,655.91/20,457.62 = 8,375.52/x
  3. Step 3: Cross multiply
    13,655.91x = 20,457.62 × 8,375.52
  4. Step 4: Simplify right side
    13,655.91x = 171,343,205.46
  5. Step 5: Solve for x
    x = 171,343,205.46/13,655.91
  6. Step 6: Final answer
    x = 12,547.18

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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.