Home / 15,771.34-21,744.48-10,392.94

Finding the Fourth Proportional to 15,771.34, 21,744.48 and 10,392.94

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Solution

The fourth proportional to 15,771.34, 21,744.48 and 10,392.94 is: 14,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.34 : 21,744.48 = 10,392.94 : x
  2. Step 2: Convert to fraction form
    15,771.34/21,744.48 = 10,392.94/x
  3. Step 3: Cross multiply
    15,771.34x = 21,744.48 × 10,392.94
  4. Step 4: Simplify right side
    15,771.34x = 225,989,075.97
  5. Step 5: Solve for x
    x = 225,989,075.97/15,771.34
  6. Step 6: Final answer
    x = 14,329.10

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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.