Home / 13,849.84-20,666.66-12,358.80

Finding the Fourth Proportional to 13,849.84, 20,666.66 and 12,358.80

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Solution

The fourth proportional to 13,849.84, 20,666.66 and 12,358.80 is: 18,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.84 : 20,666.66 = 12,358.80 : x
  2. Step 2: Convert to fraction form
    13,849.84/20,666.66 = 12,358.80/x
  3. Step 3: Cross multiply
    13,849.84x = 20,666.66 × 12,358.80
  4. Step 4: Simplify right side
    13,849.84x = 255,415,117.61
  5. Step 5: Solve for x
    x = 255,415,117.61/13,849.84
  6. Step 6: Final answer
    x = 18,441.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.