Home / 15,924.79-21,977.43-9,551.63

Finding the Fourth Proportional to 15,924.79, 21,977.43 and 9,551.63

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Solution

The fourth proportional to 15,924.79, 21,977.43 and 9,551.63 is: 13,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.79 : 21,977.43 = 9,551.63 : x
  2. Step 2: Convert to fraction form
    15,924.79/21,977.43 = 9,551.63/x
  3. Step 3: Cross multiply
    15,924.79x = 21,977.43 × 9,551.63
  4. Step 4: Simplify right side
    15,924.79x = 209,920,169.82
  5. Step 5: Solve for x
    x = 209,920,169.82/15,924.79
  6. Step 6: Final answer
    x = 13,181.98

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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.