Home / 14,378.26-21,572.88-5,619.28

Finding the Fourth Proportional to 14,378.26, 21,572.88 and 5,619.28

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Solution

The fourth proportional to 14,378.26, 21,572.88 and 5,619.28 is: 8,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.26 : 21,572.88 = 5,619.28 : x
  2. Step 2: Convert to fraction form
    14,378.26/21,572.88 = 5,619.28/x
  3. Step 3: Cross multiply
    14,378.26x = 21,572.88 × 5,619.28
  4. Step 4: Simplify right side
    14,378.26x = 121,224,053.13
  5. Step 5: Solve for x
    x = 121,224,053.13/14,378.26
  6. Step 6: Final answer
    x = 8,431.07

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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.