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Finding the Fourth Proportional to 7,553, 10,386.15 and 6,556.53

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Solution

The fourth proportional to 7,553, 10,386.15 and 6,556.53 is: 9,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,553 : 10,386.15 = 6,556.53 : x
  2. Step 2: Convert to fraction form
    7,553/10,386.15 = 6,556.53/x
  3. Step 3: Cross multiply
    7,553x = 10,386.15 × 6,556.53
  4. Step 4: Simplify right side
    7,553x = 68,097,104.06
  5. Step 5: Solve for x
    x = 68,097,104.06/7,553
  6. Step 6: Final answer
    x = 9,015.90

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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.