Home / 14,358.21-19,814.58-7,898.15

Finding the Fourth Proportional to 14,358.21, 19,814.58 and 7,898.15

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Solution

The fourth proportional to 14,358.21, 19,814.58 and 7,898.15 is: 10,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.21 : 19,814.58 = 7,898.15 : x
  2. Step 2: Convert to fraction form
    14,358.21/19,814.58 = 7,898.15/x
  3. Step 3: Cross multiply
    14,358.21x = 19,814.58 × 7,898.15
  4. Step 4: Simplify right side
    14,358.21x = 156,498,425.95
  5. Step 5: Solve for x
    x = 156,498,425.95/14,358.21
  6. Step 6: Final answer
    x = 10,899.58

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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.