Home / 19,485.25-26,892.28-10,989.12

Finding the Fourth Proportional to 19,485.25, 26,892.28 and 10,989.12

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Solution

The fourth proportional to 19,485.25, 26,892.28 and 10,989.12 is: 15,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.25 : 26,892.28 = 10,989.12 : x
  2. Step 2: Convert to fraction form
    19,485.25/26,892.28 = 10,989.12/x
  3. Step 3: Cross multiply
    19,485.25x = 26,892.28 × 10,989.12
  4. Step 4: Simplify right side
    19,485.25x = 295,522,491.99
  5. Step 5: Solve for x
    x = 295,522,491.99/19,485.25
  6. Step 6: Final answer
    x = 15,166.47

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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.