Home / 15,948.70-21,999.40-10,281.33

Finding the Fourth Proportional to 15,948.70, 21,999.40 and 10,281.33

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Solution

The fourth proportional to 15,948.70, 21,999.40 and 10,281.33 is: 14,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,948.70 : 21,999.40 = 10,281.33 : x
  2. Step 2: Convert to fraction form
    15,948.70/21,999.40 = 10,281.33/x
  3. Step 3: Cross multiply
    15,948.70x = 21,999.40 × 10,281.33
  4. Step 4: Simplify right side
    15,948.70x = 226,183,065.50
  5. Step 5: Solve for x
    x = 226,183,065.50/15,948.70
  6. Step 6: Final answer
    x = 14,181.91

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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.