Home / 14,651.28-21,971.32-5,288.76

Finding the Fourth Proportional to 14,651.28, 21,971.32 and 5,288.76

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Solution

The fourth proportional to 14,651.28, 21,971.32 and 5,288.76 is: 7,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.28 : 21,971.32 = 5,288.76 : x
  2. Step 2: Convert to fraction form
    14,651.28/21,971.32 = 5,288.76/x
  3. Step 3: Cross multiply
    14,651.28x = 21,971.32 × 5,288.76
  4. Step 4: Simplify right side
    14,651.28x = 116,201,025.14
  5. Step 5: Solve for x
    x = 116,201,025.14/14,651.28
  6. Step 6: Final answer
    x = 7,931.12

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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.