Home / 13,066.54-19,686.98-11,818.57

Finding the Fourth Proportional to 13,066.54, 19,686.98 and 11,818.57

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Solution

The fourth proportional to 13,066.54, 19,686.98 and 11,818.57 is: 17,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.54 : 19,686.98 = 11,818.57 : x
  2. Step 2: Convert to fraction form
    13,066.54/19,686.98 = 11,818.57/x
  3. Step 3: Cross multiply
    13,066.54x = 19,686.98 × 11,818.57
  4. Step 4: Simplify right side
    13,066.54x = 232,671,951.22
  5. Step 5: Solve for x
    x = 232,671,951.22/13,066.54
  6. Step 6: Final answer
    x = 17,806.70

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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.