Home / 13,784.92-20,669.54-9,407.68

Finding the Fourth Proportional to 13,784.92, 20,669.54 and 9,407.68

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Solution

The fourth proportional to 13,784.92, 20,669.54 and 9,407.68 is: 14,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.92 : 20,669.54 = 9,407.68 : x
  2. Step 2: Convert to fraction form
    13,784.92/20,669.54 = 9,407.68/x
  3. Step 3: Cross multiply
    13,784.92x = 20,669.54 × 9,407.68
  4. Step 4: Simplify right side
    13,784.92x = 194,452,418.07
  5. Step 5: Solve for x
    x = 194,452,418.07/13,784.92
  6. Step 6: Final answer
    x = 14,106.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.