Home / 15,938.67-21,994.41-9,223.81

Finding the Fourth Proportional to 15,938.67, 21,994.41 and 9,223.81

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Solution

The fourth proportional to 15,938.67, 21,994.41 and 9,223.81 is: 12,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.67 : 21,994.41 = 9,223.81 : x
  2. Step 2: Convert to fraction form
    15,938.67/21,994.41 = 9,223.81/x
  3. Step 3: Cross multiply
    15,938.67x = 21,994.41 × 9,223.81
  4. Step 4: Simplify right side
    15,938.67x = 202,872,258.90
  5. Step 5: Solve for x
    x = 202,872,258.90/15,938.67
  6. Step 6: Final answer
    x = 12,728.31

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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.