Home / 14,989.16-20,684.80-8,275.48

Finding the Fourth Proportional to 14,989.16, 20,684.80 and 8,275.48

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Solution

The fourth proportional to 14,989.16, 20,684.80 and 8,275.48 is: 11,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.16 : 20,684.80 = 8,275.48 : x
  2. Step 2: Convert to fraction form
    14,989.16/20,684.80 = 8,275.48/x
  3. Step 3: Cross multiply
    14,989.16x = 20,684.80 × 8,275.48
  4. Step 4: Simplify right side
    14,989.16x = 171,176,648.70
  5. Step 5: Solve for x
    x = 171,176,648.70/14,989.16
  6. Step 6: Final answer
    x = 11,420.03

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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.