Home / 10,959.36-15,113.98-7,181.14

Finding the Fourth Proportional to 10,959.36, 15,113.98 and 7,181.14

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Solution

The fourth proportional to 10,959.36, 15,113.98 and 7,181.14 is: 9,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.36 : 15,113.98 = 7,181.14 : x
  2. Step 2: Convert to fraction form
    10,959.36/15,113.98 = 7,181.14/x
  3. Step 3: Cross multiply
    10,959.36x = 15,113.98 × 7,181.14
  4. Step 4: Simplify right side
    10,959.36x = 108,535,626.06
  5. Step 5: Solve for x
    x = 108,535,626.06/10,959.36
  6. Step 6: Final answer
    x = 9,903.46

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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.