Home / 7,256.05-10,001.77-5,720.47

Finding the Fourth Proportional to 7,256.05, 10,001.77 and 5,720.47

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Solution

The fourth proportional to 7,256.05, 10,001.77 and 5,720.47 is: 7,885.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.05 : 10,001.77 = 5,720.47 : x
  2. Step 2: Convert to fraction form
    7,256.05/10,001.77 = 5,720.47/x
  3. Step 3: Cross multiply
    7,256.05x = 10,001.77 × 5,720.47
  4. Step 4: Simplify right side
    7,256.05x = 57,214,775.22
  5. Step 5: Solve for x
    x = 57,214,775.22/7,256.05
  6. Step 6: Final answer
    x = 7,885.11

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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.