Home / 15,389.84-21,248.04-11,846.48

Finding the Fourth Proportional to 15,389.84, 21,248.04 and 11,846.48

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Solution

The fourth proportional to 15,389.84, 21,248.04 and 11,846.48 is: 16,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.84 : 21,248.04 = 11,846.48 : x
  2. Step 2: Convert to fraction form
    15,389.84/21,248.04 = 11,846.48/x
  3. Step 3: Cross multiply
    15,389.84x = 21,248.04 × 11,846.48
  4. Step 4: Simplify right side
    15,389.84x = 251,714,480.90
  5. Step 5: Solve for x
    x = 251,714,480.90/15,389.84
  6. Step 6: Final answer
    x = 16,355.89

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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.