Home / 14,686.03-20,266.72-8,398.41

Finding the Fourth Proportional to 14,686.03, 20,266.72 and 8,398.41

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Solution

The fourth proportional to 14,686.03, 20,266.72 and 8,398.41 is: 11,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.03 : 20,266.72 = 8,398.41 : x
  2. Step 2: Convert to fraction form
    14,686.03/20,266.72 = 8,398.41/x
  3. Step 3: Cross multiply
    14,686.03x = 20,266.72 × 8,398.41
  4. Step 4: Simplify right side
    14,686.03x = 170,208,174.16
  5. Step 5: Solve for x
    x = 170,208,174.16/14,686.03
  6. Step 6: Final answer
    x = 11,589.80

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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.