Home / 10,998.28-15,172.26-6,281.32

Finding the Fourth Proportional to 10,998.28, 15,172.26 and 6,281.32

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Solution

The fourth proportional to 10,998.28, 15,172.26 and 6,281.32 is: 8,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.28 : 15,172.26 = 6,281.32 : x
  2. Step 2: Convert to fraction form
    10,998.28/15,172.26 = 6,281.32/x
  3. Step 3: Cross multiply
    10,998.28x = 15,172.26 × 6,281.32
  4. Step 4: Simplify right side
    10,998.28x = 95,301,820.18
  5. Step 5: Solve for x
    x = 95,301,820.18/10,998.28
  6. Step 6: Final answer
    x = 8,665.16

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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.