Home / 12,973.70-17,900.40-8,717.18

Finding the Fourth Proportional to 12,973.70, 17,900.40 and 8,717.18

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Solution

The fourth proportional to 12,973.70, 17,900.40 and 8,717.18 is: 12,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.70 : 17,900.40 = 8,717.18 : x
  2. Step 2: Convert to fraction form
    12,973.70/17,900.40 = 8,717.18/x
  3. Step 3: Cross multiply
    12,973.70x = 17,900.40 × 8,717.18
  4. Step 4: Simplify right side
    12,973.70x = 156,041,008.87
  5. Step 5: Solve for x
    x = 156,041,008.87/12,973.70
  6. Step 6: Final answer
    x = 12,027.49

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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.