Home / 13,848.84-20,665.17-12,357.80

Finding the Fourth Proportional to 13,848.84, 20,665.17 and 12,357.80

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Solution

The fourth proportional to 13,848.84, 20,665.17 and 12,357.80 is: 18,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.84 : 20,665.17 = 12,357.80 : x
  2. Step 2: Convert to fraction form
    13,848.84/20,665.17 = 12,357.80/x
  3. Step 3: Cross multiply
    13,848.84x = 20,665.17 × 12,357.80
  4. Step 4: Simplify right side
    13,848.84x = 255,376,037.83
  5. Step 5: Solve for x
    x = 255,376,037.83/13,848.84
  6. Step 6: Final answer
    x = 18,440.25

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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.