Home / 12,306.36-16,983.18-7,001.40

Finding the Fourth Proportional to 12,306.36, 16,983.18 and 7,001.40

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Solution

The fourth proportional to 12,306.36, 16,983.18 and 7,001.40 is: 9,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.36 : 16,983.18 = 7,001.40 : x
  2. Step 2: Convert to fraction form
    12,306.36/16,983.18 = 7,001.40/x
  3. Step 3: Cross multiply
    12,306.36x = 16,983.18 × 7,001.40
  4. Step 4: Simplify right side
    12,306.36x = 118,906,036.45
  5. Step 5: Solve for x
    x = 118,906,036.45/12,306.36
  6. Step 6: Final answer
    x = 9,662.16

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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.