Home / 15,738.01-21,717.80-9,018.96

Finding the Fourth Proportional to 15,738.01, 21,717.80 and 9,018.96

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Solution

The fourth proportional to 15,738.01, 21,717.80 and 9,018.96 is: 12,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,738.01 : 21,717.80 = 9,018.96 : x
  2. Step 2: Convert to fraction form
    15,738.01/21,717.80 = 9,018.96/x
  3. Step 3: Cross multiply
    15,738.01x = 21,717.80 × 9,018.96
  4. Step 4: Simplify right side
    15,738.01x = 195,871,969.49
  5. Step 5: Solve for x
    x = 195,871,969.49/15,738.01
  6. Step 6: Final answer
    x = 12,445.79

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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.