Home / 15,036.56-20,750.30-8,322.20

Finding the Fourth Proportional to 15,036.56, 20,750.30 and 8,322.20

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Solution

The fourth proportional to 15,036.56, 20,750.30 and 8,322.20 is: 11,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.56 : 20,750.30 = 8,322.20 : x
  2. Step 2: Convert to fraction form
    15,036.56/20,750.30 = 8,322.20/x
  3. Step 3: Cross multiply
    15,036.56x = 20,750.30 × 8,322.20
  4. Step 4: Simplify right side
    15,036.56x = 172,688,146.66
  5. Step 5: Solve for x
    x = 172,688,146.66/15,036.56
  6. Step 6: Final answer
    x = 11,484.55

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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.