Home / 15,213.89-22,822.76-5,220.59

Finding the Fourth Proportional to 15,213.89, 22,822.76 and 5,220.59

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Solution

The fourth proportional to 15,213.89, 22,822.76 and 5,220.59 is: 7,831.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.89 : 22,822.76 = 5,220.59 : x
  2. Step 2: Convert to fraction form
    15,213.89/22,822.76 = 5,220.59/x
  3. Step 3: Cross multiply
    15,213.89x = 22,822.76 × 5,220.59
  4. Step 4: Simplify right side
    15,213.89x = 119,148,158.51
  5. Step 5: Solve for x
    x = 119,148,158.51/15,213.89
  6. Step 6: Final answer
    x = 7,831.54

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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.