Home / 17,547.30-26,334.32-12,879.81

Finding the Fourth Proportional to 17,547.30, 26,334.32 and 12,879.81

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Solution

The fourth proportional to 17,547.30, 26,334.32 and 12,879.81 is: 19,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,547.30 : 26,334.32 = 12,879.81 : x
  2. Step 2: Convert to fraction form
    17,547.30/26,334.32 = 12,879.81/x
  3. Step 3: Cross multiply
    17,547.30x = 26,334.32 × 12,879.81
  4. Step 4: Simplify right side
    17,547.30x = 339,180,973.68
  5. Step 5: Solve for x
    x = 339,180,973.68/17,547.30
  6. Step 6: Final answer
    x = 19,329.52

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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.