Home / 15,670.09-21,625.68-10,355.68

Finding the Fourth Proportional to 15,670.09, 21,625.68 and 10,355.68

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Solution

The fourth proportional to 15,670.09, 21,625.68 and 10,355.68 is: 14,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,670.09 : 21,625.68 = 10,355.68 : x
  2. Step 2: Convert to fraction form
    15,670.09/21,625.68 = 10,355.68/x
  3. Step 3: Cross multiply
    15,670.09x = 21,625.68 × 10,355.68
  4. Step 4: Simplify right side
    15,670.09x = 223,948,621.86
  5. Step 5: Solve for x
    x = 223,948,621.86/15,670.09
  6. Step 6: Final answer
    x = 14,291.47

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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.