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Finding the Fourth Proportional to 12,897.07, 17,797.95 and 7,308.07

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Solution

The fourth proportional to 12,897.07, 17,797.95 and 7,308.07 is: 10,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.07 : 17,797.95 = 7,308.07 : x
  2. Step 2: Convert to fraction form
    12,897.07/17,797.95 = 7,308.07/x
  3. Step 3: Cross multiply
    12,897.07x = 17,797.95 × 7,308.07
  4. Step 4: Simplify right side
    12,897.07x = 130,068,664.46
  5. Step 5: Solve for x
    x = 130,068,664.46/12,897.07
  6. Step 6: Final answer
    x = 10,085.13

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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.