Home / 15,030.28-20,739.96-8,657.02

Finding the Fourth Proportional to 15,030.28, 20,739.96 and 8,657.02

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Solution

The fourth proportional to 15,030.28, 20,739.96 and 8,657.02 is: 11,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.28 : 20,739.96 = 8,657.02 : x
  2. Step 2: Convert to fraction form
    15,030.28/20,739.96 = 8,657.02/x
  3. Step 3: Cross multiply
    15,030.28x = 20,739.96 × 8,657.02
  4. Step 4: Simplify right side
    15,030.28x = 179,546,248.52
  5. Step 5: Solve for x
    x = 179,546,248.52/15,030.28
  6. Step 6: Final answer
    x = 11,945.64

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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.