Home / 12,966.36-19,459.17-9,642.36

Finding the Fourth Proportional to 12,966.36, 19,459.17 and 9,642.36

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Solution

The fourth proportional to 12,966.36, 19,459.17 and 9,642.36 is: 14,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.36 : 19,459.17 = 9,642.36 : x
  2. Step 2: Convert to fraction form
    12,966.36/19,459.17 = 9,642.36/x
  3. Step 3: Cross multiply
    12,966.36x = 19,459.17 × 9,642.36
  4. Step 4: Simplify right side
    12,966.36x = 187,632,322.44
  5. Step 5: Solve for x
    x = 187,632,322.44/12,966.36
  6. Step 6: Final answer
    x = 14,470.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.