Home / 15,267.80-21,068.94-8,553.32

Finding the Fourth Proportional to 15,267.80, 21,068.94 and 8,553.32

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Solution

The fourth proportional to 15,267.80, 21,068.94 and 8,553.32 is: 11,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.80 : 21,068.94 = 8,553.32 : x
  2. Step 2: Convert to fraction form
    15,267.80/21,068.94 = 8,553.32/x
  3. Step 3: Cross multiply
    15,267.80x = 21,068.94 × 8,553.32
  4. Step 4: Simplify right side
    15,267.80x = 180,209,385.88
  5. Step 5: Solve for x
    x = 180,209,385.88/15,267.80
  6. Step 6: Final answer
    x = 11,803.23

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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.