Home / 15,287.94-21,094.83-9,001.53

Finding the Fourth Proportional to 15,287.94, 21,094.83 and 9,001.53

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Solution

The fourth proportional to 15,287.94, 21,094.83 and 9,001.53 is: 12,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.94 : 21,094.83 = 9,001.53 : x
  2. Step 2: Convert to fraction form
    15,287.94/21,094.83 = 9,001.53/x
  3. Step 3: Cross multiply
    15,287.94x = 21,094.83 × 9,001.53
  4. Step 4: Simplify right side
    15,287.94x = 189,885,745.09
  5. Step 5: Solve for x
    x = 189,885,745.09/15,287.94
  6. Step 6: Final answer
    x = 12,420.62

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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.