Home / 13,230.42-19,815.21-7,374.06

Finding the Fourth Proportional to 13,230.42, 19,815.21 and 7,374.06

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Solution

The fourth proportional to 13,230.42, 19,815.21 and 7,374.06 is: 11,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.42 : 19,815.21 = 7,374.06 : x
  2. Step 2: Convert to fraction form
    13,230.42/19,815.21 = 7,374.06/x
  3. Step 3: Cross multiply
    13,230.42x = 19,815.21 × 7,374.06
  4. Step 4: Simplify right side
    13,230.42x = 146,118,547.45
  5. Step 5: Solve for x
    x = 146,118,547.45/13,230.42
  6. Step 6: Final answer
    x = 11,044.14

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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.