Home / 14,002.40-19,316.40-11,928.80

Finding the Fourth Proportional to 14,002.40, 19,316.40 and 11,928.80

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Solution

The fourth proportional to 14,002.40, 19,316.40 and 11,928.80 is: 16,455.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.40 : 19,316.40 = 11,928.80 : x
  2. Step 2: Convert to fraction form
    14,002.40/19,316.40 = 11,928.80/x
  3. Step 3: Cross multiply
    14,002.40x = 19,316.40 × 11,928.80
  4. Step 4: Simplify right side
    14,002.40x = 230,421,472.32
  5. Step 5: Solve for x
    x = 230,421,472.32/14,002.40
  6. Step 6: Final answer
    x = 16,455.86

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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.