Home / 19,288.08-26,607.96-12,989.52

Finding the Fourth Proportional to 19,288.08, 26,607.96 and 12,989.52

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Solution

The fourth proportional to 19,288.08, 26,607.96 and 12,989.52 is: 17,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.08 : 26,607.96 = 12,989.52 : x
  2. Step 2: Convert to fraction form
    19,288.08/26,607.96 = 12,989.52/x
  3. Step 3: Cross multiply
    19,288.08x = 26,607.96 × 12,989.52
  4. Step 4: Simplify right side
    19,288.08x = 345,624,628.58
  5. Step 5: Solve for x
    x = 345,624,628.58/19,288.08
  6. Step 6: Final answer
    x = 17,919.08

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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.