Home / 11,615.20-16,030.35-6,899.50

Finding the Fourth Proportional to 11,615.20, 16,030.35 and 6,899.50

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Solution

The fourth proportional to 11,615.20, 16,030.35 and 6,899.50 is: 9,522.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.20 : 16,030.35 = 6,899.50 : x
  2. Step 2: Convert to fraction form
    11,615.20/16,030.35 = 6,899.50/x
  3. Step 3: Cross multiply
    11,615.20x = 16,030.35 × 6,899.50
  4. Step 4: Simplify right side
    11,615.20x = 110,601,399.83
  5. Step 5: Solve for x
    x = 110,601,399.83/11,615.20
  6. Step 6: Final answer
    x = 9,522.13

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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.