Home / 14,686.56-20,267.40-8,398.92

Finding the Fourth Proportional to 14,686.56, 20,267.40 and 8,398.92

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Solution

The fourth proportional to 14,686.56, 20,267.40 and 8,398.92 is: 11,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,686.56 : 20,267.40 = 8,398.92 : x
  2. Step 2: Convert to fraction form
    14,686.56/20,267.40 = 8,398.92/x
  3. Step 3: Cross multiply
    14,686.56x = 20,267.40 × 8,398.92
  4. Step 4: Simplify right side
    14,686.56x = 170,224,271.21
  5. Step 5: Solve for x
    x = 170,224,271.21/14,686.56
  6. Step 6: Final answer
    x = 11,590.48

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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.