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Finding the Fourth Proportional to 12,860.04, 17,746.75 and 7,194.76

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Solution

The fourth proportional to 12,860.04, 17,746.75 and 7,194.76 is: 9,928.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.04 : 17,746.75 = 7,194.76 : x
  2. Step 2: Convert to fraction form
    12,860.04/17,746.75 = 7,194.76/x
  3. Step 3: Cross multiply
    12,860.04x = 17,746.75 × 7,194.76
  4. Step 4: Simplify right side
    12,860.04x = 127,683,607.03
  5. Step 5: Solve for x
    x = 127,683,607.03/12,860.04
  6. Step 6: Final answer
    x = 9,928.71

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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.