Home / 10,918.90-15,073.80-7,352.60

Finding the Fourth Proportional to 10,918.90, 15,073.80 and 7,352.60

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Solution

The fourth proportional to 10,918.90, 15,073.80 and 7,352.60 is: 10,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.90 : 15,073.80 = 7,352.60 : x
  2. Step 2: Convert to fraction form
    10,918.90/15,073.80 = 7,352.60/x
  3. Step 3: Cross multiply
    10,918.90x = 15,073.80 × 7,352.60
  4. Step 4: Simplify right side
    10,918.90x = 110,831,621.88
  5. Step 5: Solve for x
    x = 110,831,621.88/10,918.90
  6. Step 6: Final answer
    x = 10,150.44

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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.