Home / 13,809.86-19,068.85-11,258.02

Finding the Fourth Proportional to 13,809.86, 19,068.85 and 11,258.02

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Solution

The fourth proportional to 13,809.86, 19,068.85 and 11,258.02 is: 15,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.86 : 19,068.85 = 11,258.02 : x
  2. Step 2: Convert to fraction form
    13,809.86/19,068.85 = 11,258.02/x
  3. Step 3: Cross multiply
    13,809.86x = 19,068.85 × 11,258.02
  4. Step 4: Simplify right side
    13,809.86x = 214,677,494.68
  5. Step 5: Solve for x
    x = 214,677,494.68/13,809.86
  6. Step 6: Final answer
    x = 15,545.23

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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.