Home / 14,103.16-19,462.11-7,815.40

Finding the Fourth Proportional to 14,103.16, 19,462.11 and 7,815.40

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Solution

The fourth proportional to 14,103.16, 19,462.11 and 7,815.40 is: 10,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.16 : 19,462.11 = 7,815.40 : x
  2. Step 2: Convert to fraction form
    14,103.16/19,462.11 = 7,815.40/x
  3. Step 3: Cross multiply
    14,103.16x = 19,462.11 × 7,815.40
  4. Step 4: Simplify right side
    14,103.16x = 152,104,174.49
  5. Step 5: Solve for x
    x = 152,104,174.49/14,103.16
  6. Step 6: Final answer
    x = 10,785.11

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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.