Home / 13,707.98-18,925.80-11,196.11

Finding the Fourth Proportional to 13,707.98, 18,925.80 and 11,196.11

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Solution

The fourth proportional to 13,707.98, 18,925.80 and 11,196.11 is: 15,457.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.98 : 18,925.80 = 11,196.11 : x
  2. Step 2: Convert to fraction form
    13,707.98/18,925.80 = 11,196.11/x
  3. Step 3: Cross multiply
    13,707.98x = 18,925.80 × 11,196.11
  4. Step 4: Simplify right side
    13,707.98x = 211,895,385.95
  5. Step 5: Solve for x
    x = 211,895,385.95/13,707.98
  6. Step 6: Final answer
    x = 15,457.82

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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.