Home / 13,641.03-20,341.07-11,981.95

Finding the Fourth Proportional to 13,641.03, 20,341.07 and 11,981.95

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Solution

The fourth proportional to 13,641.03, 20,341.07 and 11,981.95 is: 17,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.03 : 20,341.07 = 11,981.95 : x
  2. Step 2: Convert to fraction form
    13,641.03/20,341.07 = 11,981.95/x
  3. Step 3: Cross multiply
    13,641.03x = 20,341.07 × 11,981.95
  4. Step 4: Simplify right side
    13,641.03x = 243,725,662.79
  5. Step 5: Solve for x
    x = 243,725,662.79/13,641.03
  6. Step 6: Final answer
    x = 17,867.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.