Home / 12,669.77-19,007.74-8,928.84

Finding the Fourth Proportional to 12,669.77, 19,007.74 and 8,928.84

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Solution

The fourth proportional to 12,669.77, 19,007.74 and 8,928.84 is: 13,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.77 : 19,007.74 = 8,928.84 : x
  2. Step 2: Convert to fraction form
    12,669.77/19,007.74 = 8,928.84/x
  3. Step 3: Cross multiply
    12,669.77x = 19,007.74 × 8,928.84
  4. Step 4: Simplify right side
    12,669.77x = 169,717,044.74
  5. Step 5: Solve for x
    x = 169,717,044.74/12,669.77
  6. Step 6: Final answer
    x = 13,395.44

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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.