Home / 15,315.09-22,970.54-4,220.19

Finding the Fourth Proportional to 15,315.09, 22,970.54 and 4,220.19

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Solution

The fourth proportional to 15,315.09, 22,970.54 and 4,220.19 is: 6,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.09 : 22,970.54 = 4,220.19 : x
  2. Step 2: Convert to fraction form
    15,315.09/22,970.54 = 4,220.19/x
  3. Step 3: Cross multiply
    15,315.09x = 22,970.54 × 4,220.19
  4. Step 4: Simplify right side
    15,315.09x = 96,940,043.20
  5. Step 5: Solve for x
    x = 96,940,043.20/15,315.09
  6. Step 6: Final answer
    x = 6,329.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.