Home / 15,273.08-21,077.69-8,560.86

Finding the Fourth Proportional to 15,273.08, 21,077.69 and 8,560.86

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Solution

The fourth proportional to 15,273.08, 21,077.69 and 8,560.86 is: 11,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.08 : 21,077.69 = 8,560.86 : x
  2. Step 2: Convert to fraction form
    15,273.08/21,077.69 = 8,560.86/x
  3. Step 3: Cross multiply
    15,273.08x = 21,077.69 × 8,560.86
  4. Step 4: Simplify right side
    15,273.08x = 180,443,153.21
  5. Step 5: Solve for x
    x = 180,443,153.21/15,273.08
  6. Step 6: Final answer
    x = 11,814.46

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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.