Home / 14,382.80-21,561.40-8,533.20

Finding the Fourth Proportional to 14,382.80, 21,561.40 and 8,533.20

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Solution

The fourth proportional to 14,382.80, 21,561.40 and 8,533.20 is: 12,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.80 : 21,561.40 = 8,533.20 : x
  2. Step 2: Convert to fraction form
    14,382.80/21,561.40 = 8,533.20/x
  3. Step 3: Cross multiply
    14,382.80x = 21,561.40 × 8,533.20
  4. Step 4: Simplify right side
    14,382.80x = 183,987,738.48
  5. Step 5: Solve for x
    x = 183,987,738.48/14,382.80
  6. Step 6: Final answer
    x = 12,792.21

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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.