Home / 16,972.09-23,421.63-9,418.93

Finding the Fourth Proportional to 16,972.09, 23,421.63 and 9,418.93

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Solution

The fourth proportional to 16,972.09, 23,421.63 and 9,418.93 is: 12,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.09 : 23,421.63 = 9,418.93 : x
  2. Step 2: Convert to fraction form
    16,972.09/23,421.63 = 9,418.93/x
  3. Step 3: Cross multiply
    16,972.09x = 23,421.63 × 9,418.93
  4. Step 4: Simplify right side
    16,972.09x = 220,606,693.46
  5. Step 5: Solve for x
    x = 220,606,693.46/16,972.09
  6. Step 6: Final answer
    x = 12,998.20

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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.