Home / 13,660.16-18,828.36-9,676.16

Finding the Fourth Proportional to 13,660.16, 18,828.36 and 9,676.16

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Solution

The fourth proportional to 13,660.16, 18,828.36 and 9,676.16 is: 13,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.16 : 18,828.36 = 9,676.16 : x
  2. Step 2: Convert to fraction form
    13,660.16/18,828.36 = 9,676.16/x
  3. Step 3: Cross multiply
    13,660.16x = 18,828.36 × 9,676.16
  4. Step 4: Simplify right side
    13,660.16x = 182,186,223.90
  5. Step 5: Solve for x
    x = 182,186,223.90/13,660.16
  6. Step 6: Final answer
    x = 13,337.05

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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.