Home / 14,512.12-20,015.40-9,730.49

Finding the Fourth Proportional to 14,512.12, 20,015.40 and 9,730.49

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Solution

The fourth proportional to 14,512.12, 20,015.40 and 9,730.49 is: 13,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.12 : 20,015.40 = 9,730.49 : x
  2. Step 2: Convert to fraction form
    14,512.12/20,015.40 = 9,730.49/x
  3. Step 3: Cross multiply
    14,512.12x = 20,015.40 × 9,730.49
  4. Step 4: Simplify right side
    14,512.12x = 194,759,649.55
  5. Step 5: Solve for x
    x = 194,759,649.55/14,512.12
  6. Step 6: Final answer
    x = 13,420.48

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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.