Home / 15,285.66-21,097.71-9,001.68

Finding the Fourth Proportional to 15,285.66, 21,097.71 and 9,001.68

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Solution

The fourth proportional to 15,285.66, 21,097.71 and 9,001.68 is: 12,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.66 : 21,097.71 = 9,001.68 : x
  2. Step 2: Convert to fraction form
    15,285.66/21,097.71 = 9,001.68/x
  3. Step 3: Cross multiply
    15,285.66x = 21,097.71 × 9,001.68
  4. Step 4: Simplify right side
    15,285.66x = 189,914,834.15
  5. Step 5: Solve for x
    x = 189,914,834.15/15,285.66
  6. Step 6: Final answer
    x = 12,424.38

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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.