Home / 15,267.28-21,068.48-8,553.12

Finding the Fourth Proportional to 15,267.28, 21,068.48 and 8,553.12

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Solution

The fourth proportional to 15,267.28, 21,068.48 and 8,553.12 is: 11,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,267.28 : 21,068.48 = 8,553.12 : x
  2. Step 2: Convert to fraction form
    15,267.28/21,068.48 = 8,553.12/x
  3. Step 3: Cross multiply
    15,267.28x = 21,068.48 × 8,553.12
  4. Step 4: Simplify right side
    15,267.28x = 180,201,237.66
  5. Step 5: Solve for x
    x = 180,201,237.66/15,267.28
  6. Step 6: Final answer
    x = 11,803.10

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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.