Home / 15,805.02-21,815.58-9,833.70

Finding the Fourth Proportional to 15,805.02, 21,815.58 and 9,833.70

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Solution

The fourth proportional to 15,805.02, 21,815.58 and 9,833.70 is: 13,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.02 : 21,815.58 = 9,833.70 : x
  2. Step 2: Convert to fraction form
    15,805.02/21,815.58 = 9,833.70/x
  3. Step 3: Cross multiply
    15,805.02x = 21,815.58 × 9,833.70
  4. Step 4: Simplify right side
    15,805.02x = 214,527,869.05
  5. Step 5: Solve for x
    x = 214,527,869.05/15,805.02
  6. Step 6: Final answer
    x = 13,573.40

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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.