Home / 14,155.07-21,232.79-5,390.46

Finding the Fourth Proportional to 14,155.07, 21,232.79 and 5,390.46

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Solution

The fourth proportional to 14,155.07, 21,232.79 and 5,390.46 is: 8,085.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.07 : 21,232.79 = 5,390.46 : x
  2. Step 2: Convert to fraction form
    14,155.07/21,232.79 = 5,390.46/x
  3. Step 3: Cross multiply
    14,155.07x = 21,232.79 × 5,390.46
  4. Step 4: Simplify right side
    14,155.07x = 114,454,478.23
  5. Step 5: Solve for x
    x = 114,454,478.23/14,155.07
  6. Step 6: Final answer
    x = 8,085.76

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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.