Home / 15,748.84-21,744.42-9,782.92

Finding the Fourth Proportional to 15,748.84, 21,744.42 and 9,782.92

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Solution

The fourth proportional to 15,748.84, 21,744.42 and 9,782.92 is: 13,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.84 : 21,744.42 = 9,782.92 : x
  2. Step 2: Convert to fraction form
    15,748.84/21,744.42 = 9,782.92/x
  3. Step 3: Cross multiply
    15,748.84x = 21,744.42 × 9,782.92
  4. Step 4: Simplify right side
    15,748.84x = 212,723,921.31
  5. Step 5: Solve for x
    x = 212,723,921.31/15,748.84
  6. Step 6: Final answer
    x = 13,507.28

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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.