Home / 15,669.84-21,625.34-10,355.43

Finding the Fourth Proportional to 15,669.84, 21,625.34 and 10,355.43

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Solution

The fourth proportional to 15,669.84, 21,625.34 and 10,355.43 is: 14,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.84 : 21,625.34 = 10,355.43 : x
  2. Step 2: Convert to fraction form
    15,669.84/21,625.34 = 10,355.43/x
  3. Step 3: Cross multiply
    15,669.84x = 21,625.34 × 10,355.43
  4. Step 4: Simplify right side
    15,669.84x = 223,939,642.82
  5. Step 5: Solve for x
    x = 223,939,642.82/15,669.84
  6. Step 6: Final answer
    x = 14,291.13

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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.