Home / 7,748.13-10,720.56-6,755.47

Finding the Fourth Proportional to 7,748.13, 10,720.56 and 6,755.47

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Solution

The fourth proportional to 7,748.13, 10,720.56 and 6,755.47 is: 9,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.13 : 10,720.56 = 6,755.47 : x
  2. Step 2: Convert to fraction form
    7,748.13/10,720.56 = 6,755.47/x
  3. Step 3: Cross multiply
    7,748.13x = 10,720.56 × 6,755.47
  4. Step 4: Simplify right side
    7,748.13x = 72,422,421.46
  5. Step 5: Solve for x
    x = 72,422,421.46/7,748.13
  6. Step 6: Final answer
    x = 9,347.08

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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.