Home / 15,259.79-21,057.44-10,223.19

Finding the Fourth Proportional to 15,259.79, 21,057.44 and 10,223.19

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Solution

The fourth proportional to 15,259.79, 21,057.44 and 10,223.19 is: 14,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,259.79 : 21,057.44 = 10,223.19 : x
  2. Step 2: Convert to fraction form
    15,259.79/21,057.44 = 10,223.19/x
  3. Step 3: Cross multiply
    15,259.79x = 21,057.44 × 10,223.19
  4. Step 4: Simplify right side
    15,259.79x = 215,274,158.92
  5. Step 5: Solve for x
    x = 215,274,158.92/15,259.79
  6. Step 6: Final answer
    x = 14,107.29

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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.