Home / 12,065.36-16,639.56-8,707.28

Finding the Fourth Proportional to 12,065.36, 16,639.56 and 8,707.28

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Solution

The fourth proportional to 12,065.36, 16,639.56 and 8,707.28 is: 12,008.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.36 : 16,639.56 = 8,707.28 : x
  2. Step 2: Convert to fraction form
    12,065.36/16,639.56 = 8,707.28/x
  3. Step 3: Cross multiply
    12,065.36x = 16,639.56 × 8,707.28
  4. Step 4: Simplify right side
    12,065.36x = 144,885,308.00
  5. Step 5: Solve for x
    x = 144,885,308.00/12,065.36
  6. Step 6: Final answer
    x = 12,008.37

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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.