Home / 12,706.36-17,534.46-7,117.72

Finding the Fourth Proportional to 12,706.36, 17,534.46 and 7,117.72

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Solution

The fourth proportional to 12,706.36, 17,534.46 and 7,117.72 is: 9,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.36 : 17,534.46 = 7,117.72 : x
  2. Step 2: Convert to fraction form
    12,706.36/17,534.46 = 7,117.72/x
  3. Step 3: Cross multiply
    12,706.36x = 17,534.46 × 7,117.72
  4. Step 4: Simplify right side
    12,706.36x = 124,805,376.63
  5. Step 5: Solve for x
    x = 124,805,376.63/12,706.36
  6. Step 6: Final answer
    x = 9,822.28

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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.