Home / 15,535.52-21,439.56-8,820.93

Finding the Fourth Proportional to 15,535.52, 21,439.56 and 8,820.93

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Solution

The fourth proportional to 15,535.52, 21,439.56 and 8,820.93 is: 12,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.52 : 21,439.56 = 8,820.93 : x
  2. Step 2: Convert to fraction form
    15,535.52/21,439.56 = 8,820.93/x
  3. Step 3: Cross multiply
    15,535.52x = 21,439.56 × 8,820.93
  4. Step 4: Simplify right side
    15,535.52x = 189,116,857.99
  5. Step 5: Solve for x
    x = 189,116,857.99/15,535.52
  6. Step 6: Final answer
    x = 12,173.19

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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.