Home / 13,457.43-20,167.65-6,869.77

Finding the Fourth Proportional to 13,457.43, 20,167.65 and 6,869.77

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Solution

The fourth proportional to 13,457.43, 20,167.65 and 6,869.77 is: 10,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.43 : 20,167.65 = 6,869.77 : x
  2. Step 2: Convert to fraction form
    13,457.43/20,167.65 = 6,869.77/x
  3. Step 3: Cross multiply
    13,457.43x = 20,167.65 × 6,869.77
  4. Step 4: Simplify right side
    13,457.43x = 138,547,066.52
  5. Step 5: Solve for x
    x = 138,547,066.52/13,457.43
  6. Step 6: Final answer
    x = 10,295.21

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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.