Home / 15,329.58-21,153.51-8,614.68

Finding the Fourth Proportional to 15,329.58, 21,153.51 and 8,614.68

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Solution

The fourth proportional to 15,329.58, 21,153.51 and 8,614.68 is: 11,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.58 : 21,153.51 = 8,614.68 : x
  2. Step 2: Convert to fraction form
    15,329.58/21,153.51 = 8,614.68/x
  3. Step 3: Cross multiply
    15,329.58x = 21,153.51 × 8,614.68
  4. Step 4: Simplify right side
    15,329.58x = 182,230,719.53
  5. Step 5: Solve for x
    x = 182,230,719.53/15,329.58
  6. Step 6: Final answer
    x = 11,887.52

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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.