Home / 15,872.09-21,903.48-8,798.49

Finding the Fourth Proportional to 15,872.09, 21,903.48 and 8,798.49

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Solution

The fourth proportional to 15,872.09, 21,903.48 and 8,798.49 is: 12,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.09 : 21,903.48 = 8,798.49 : x
  2. Step 2: Convert to fraction form
    15,872.09/21,903.48 = 8,798.49/x
  3. Step 3: Cross multiply
    15,872.09x = 21,903.48 × 8,798.49
  4. Step 4: Simplify right side
    15,872.09x = 192,717,549.75
  5. Step 5: Solve for x
    x = 192,717,549.75/15,872.09
  6. Step 6: Final answer
    x = 12,141.92

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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.