Home / 15,542.89-21,448.53-8,828.48

Finding the Fourth Proportional to 15,542.89, 21,448.53 and 8,828.48

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Solution

The fourth proportional to 15,542.89, 21,448.53 and 8,828.48 is: 12,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.89 : 21,448.53 = 8,828.48 : x
  2. Step 2: Convert to fraction form
    15,542.89/21,448.53 = 8,828.48/x
  3. Step 3: Cross multiply
    15,542.89x = 21,448.53 × 8,828.48
  4. Step 4: Simplify right side
    15,542.89x = 189,357,971.76
  5. Step 5: Solve for x
    x = 189,357,971.76/15,542.89
  6. Step 6: Final answer
    x = 12,182.93

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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.