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Finding the Fourth Proportional to 15,030.06, 20,741.37 and 8,406.06

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Solution

The fourth proportional to 15,030.06, 20,741.37 and 8,406.06 is: 11,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.06 : 20,741.37 = 8,406.06 : x
  2. Step 2: Convert to fraction form
    15,030.06/20,741.37 = 8,406.06/x
  3. Step 3: Cross multiply
    15,030.06x = 20,741.37 × 8,406.06
  4. Step 4: Simplify right side
    15,030.06x = 174,353,200.70
  5. Step 5: Solve for x
    x = 174,353,200.70/15,030.06
  6. Step 6: Final answer
    x = 11,600.30

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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.