Home / 13,099.41-19,653.21-8,424.70

Finding the Fourth Proportional to 13,099.41, 19,653.21 and 8,424.70

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Solution

The fourth proportional to 13,099.41, 19,653.21 and 8,424.70 is: 12,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.41 : 19,653.21 = 8,424.70 : x
  2. Step 2: Convert to fraction form
    13,099.41/19,653.21 = 8,424.70/x
  3. Step 3: Cross multiply
    13,099.41x = 19,653.21 × 8,424.70
  4. Step 4: Simplify right side
    13,099.41x = 165,572,398.29
  5. Step 5: Solve for x
    x = 165,572,398.29/13,099.41
  6. Step 6: Final answer
    x = 12,639.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.