Home / 19,487.32-26,896.81-12,669.48

Finding the Fourth Proportional to 19,487.32, 26,896.81 and 12,669.48

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Solution

The fourth proportional to 19,487.32, 26,896.81 and 12,669.48 is: 17,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.32 : 26,896.81 = 12,669.48 : x
  2. Step 2: Convert to fraction form
    19,487.32/26,896.81 = 12,669.48/x
  3. Step 3: Cross multiply
    19,487.32x = 26,896.81 × 12,669.48
  4. Step 4: Simplify right side
    19,487.32x = 340,768,624.07
  5. Step 5: Solve for x
    x = 340,768,624.07/19,487.32
  6. Step 6: Final answer
    x = 17,486.68

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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.