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Finding the Fourth Proportional to 9,907.35, 14,851.77 and 4,971.21

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Solution

The fourth proportional to 9,907.35, 14,851.77 and 4,971.21 is: 7,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.35 : 14,851.77 = 4,971.21 : x
  2. Step 2: Convert to fraction form
    9,907.35/14,851.77 = 4,971.21/x
  3. Step 3: Cross multiply
    9,907.35x = 14,851.77 × 4,971.21
  4. Step 4: Simplify right side
    9,907.35x = 73,831,267.54
  5. Step 5: Solve for x
    x = 73,831,267.54/9,907.35
  6. Step 6: Final answer
    x = 7,452.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.