Home / 8,515.02-11,749.96-4,738.40

Finding the Fourth Proportional to 8,515.02, 11,749.96 and 4,738.40

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Solution

The fourth proportional to 8,515.02, 11,749.96 and 4,738.40 is: 6,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.02 : 11,749.96 = 4,738.40 : x
  2. Step 2: Convert to fraction form
    8,515.02/11,749.96 = 4,738.40/x
  3. Step 3: Cross multiply
    8,515.02x = 11,749.96 × 4,738.40
  4. Step 4: Simplify right side
    8,515.02x = 55,676,001.70
  5. Step 5: Solve for x
    x = 55,676,001.70/8,515.02
  6. Step 6: Final answer
    x = 6,538.56

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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.