Home / 14,246.47-19,658.43-7,872.68

Finding the Fourth Proportional to 14,246.47, 19,658.43 and 7,872.68

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Solution

The fourth proportional to 14,246.47, 19,658.43 and 7,872.68 is: 10,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.47 : 19,658.43 = 7,872.68 : x
  2. Step 2: Convert to fraction form
    14,246.47/19,658.43 = 7,872.68/x
  3. Step 3: Cross multiply
    14,246.47x = 19,658.43 × 7,872.68
  4. Step 4: Simplify right side
    14,246.47x = 154,764,430.40
  5. Step 5: Solve for x
    x = 154,764,430.40/14,246.47
  6. Step 6: Final answer
    x = 10,863.35

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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.