Home / 15,444.48-21,313.37-8,370.89

Finding the Fourth Proportional to 15,444.48, 21,313.37 and 8,370.89

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Solution

The fourth proportional to 15,444.48, 21,313.37 and 8,370.89 is: 11,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.48 : 21,313.37 = 8,370.89 : x
  2. Step 2: Convert to fraction form
    15,444.48/21,313.37 = 8,370.89/x
  3. Step 3: Cross multiply
    15,444.48x = 21,313.37 × 8,370.89
  4. Step 4: Simplify right side
    15,444.48x = 178,411,833.94
  5. Step 5: Solve for x
    x = 178,411,833.94/15,444.48
  6. Step 6: Final answer
    x = 11,551.82

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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.