Home / 13,257.94-19,965.83-11,547.22

Finding the Fourth Proportional to 13,257.94, 19,965.83 and 11,547.22

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Solution

The fourth proportional to 13,257.94, 19,965.83 and 11,547.22 is: 17,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.94 : 19,965.83 = 11,547.22 : x
  2. Step 2: Convert to fraction form
    13,257.94/19,965.83 = 11,547.22/x
  3. Step 3: Cross multiply
    13,257.94x = 19,965.83 × 11,547.22
  4. Step 4: Simplify right side
    13,257.94x = 230,549,831.49
  5. Step 5: Solve for x
    x = 230,549,831.49/13,257.94
  6. Step 6: Final answer
    x = 17,389.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.