Home / 16,686.81-23,026.80-9,131.63

Finding the Fourth Proportional to 16,686.81, 23,026.80 and 9,131.63

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Solution

The fourth proportional to 16,686.81, 23,026.80 and 9,131.63 is: 12,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.81 : 23,026.80 = 9,131.63 : x
  2. Step 2: Convert to fraction form
    16,686.81/23,026.80 = 9,131.63/x
  3. Step 3: Cross multiply
    16,686.81x = 23,026.80 × 9,131.63
  4. Step 4: Simplify right side
    16,686.81x = 210,272,172.03
  5. Step 5: Solve for x
    x = 210,272,172.03/16,686.81
  6. Step 6: Final answer
    x = 12,601.10

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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.