Home / 14,798.48-20,426.28-8,515.28

Finding the Fourth Proportional to 14,798.48, 20,426.28 and 8,515.28

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Solution

The fourth proportional to 14,798.48, 20,426.28 and 8,515.28 is: 11,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.48 : 20,426.28 = 8,515.28 : x
  2. Step 2: Convert to fraction form
    14,798.48/20,426.28 = 8,515.28/x
  3. Step 3: Cross multiply
    14,798.48x = 20,426.28 × 8,515.28
  4. Step 4: Simplify right side
    14,798.48x = 173,935,493.56
  5. Step 5: Solve for x
    x = 173,935,493.56/14,798.48
  6. Step 6: Final answer
    x = 11,753.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.