Home / 14,868.74-20,518.80-8,154.20

Finding the Fourth Proportional to 14,868.74, 20,518.80 and 8,154.20

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Solution

The fourth proportional to 14,868.74, 20,518.80 and 8,154.20 is: 11,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,868.74 : 20,518.80 = 8,154.20 : x
  2. Step 2: Convert to fraction form
    14,868.74/20,518.80 = 8,154.20/x
  3. Step 3: Cross multiply
    14,868.74x = 20,518.80 × 8,154.20
  4. Step 4: Simplify right side
    14,868.74x = 167,314,398.96
  5. Step 5: Solve for x
    x = 167,314,398.96/14,868.74
  6. Step 6: Final answer
    x = 11,252.76

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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.