Home / 14,990.02-20,686.92-8,276.60

Finding the Fourth Proportional to 14,990.02, 20,686.92 and 8,276.60

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Solution

The fourth proportional to 14,990.02, 20,686.92 and 8,276.60 is: 11,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.02 : 20,686.92 = 8,276.60 : x
  2. Step 2: Convert to fraction form
    14,990.02/20,686.92 = 8,276.60/x
  3. Step 3: Cross multiply
    14,990.02x = 20,686.92 × 8,276.60
  4. Step 4: Simplify right side
    14,990.02x = 171,217,362.07
  5. Step 5: Solve for x
    x = 171,217,362.07/14,990.02
  6. Step 6: Final answer
    x = 11,422.09

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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.