Home / 15,362.28-21,201.89-8,648.19

Finding the Fourth Proportional to 15,362.28, 21,201.89 and 8,648.19

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Solution

The fourth proportional to 15,362.28, 21,201.89 and 8,648.19 is: 11,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.28 : 21,201.89 = 8,648.19 : x
  2. Step 2: Convert to fraction form
    15,362.28/21,201.89 = 8,648.19/x
  3. Step 3: Cross multiply
    15,362.28x = 21,201.89 × 8,648.19
  4. Step 4: Simplify right side
    15,362.28x = 183,357,929.84
  5. Step 5: Solve for x
    x = 183,357,929.84/15,362.28
  6. Step 6: Final answer
    x = 11,935.59

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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.