Home / 15,008.12-20,712.66-8,295.32

Finding the Fourth Proportional to 15,008.12, 20,712.66 and 8,295.32

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Solution

The fourth proportional to 15,008.12, 20,712.66 and 8,295.32 is: 11,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.12 : 20,712.66 = 8,295.32 : x
  2. Step 2: Convert to fraction form
    15,008.12/20,712.66 = 8,295.32/x
  3. Step 3: Cross multiply
    15,008.12x = 20,712.66 × 8,295.32
  4. Step 4: Simplify right side
    15,008.12x = 171,818,142.75
  5. Step 5: Solve for x
    x = 171,818,142.75/15,008.12
  6. Step 6: Final answer
    x = 11,448.35

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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.