Home / 12,943.96-19,328.21-10,281.58

Finding the Fourth Proportional to 12,943.96, 19,328.21 and 10,281.58

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Solution

The fourth proportional to 12,943.96, 19,328.21 and 10,281.58 is: 15,352.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.96 : 19,328.21 = 10,281.58 : x
  2. Step 2: Convert to fraction form
    12,943.96/19,328.21 = 10,281.58/x
  3. Step 3: Cross multiply
    12,943.96x = 19,328.21 × 10,281.58
  4. Step 4: Simplify right side
    12,943.96x = 198,724,537.37
  5. Step 5: Solve for x
    x = 198,724,537.37/12,943.96
  6. Step 6: Final answer
    x = 15,352.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.