Home / 12,849.81-19,261.59-7,291.41

Finding the Fourth Proportional to 12,849.81, 19,261.59 and 7,291.41

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Solution

The fourth proportional to 12,849.81, 19,261.59 and 7,291.41 is: 10,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.81 : 19,261.59 = 7,291.41 : x
  2. Step 2: Convert to fraction form
    12,849.81/19,261.59 = 7,291.41/x
  3. Step 3: Cross multiply
    12,849.81x = 19,261.59 × 7,291.41
  4. Step 4: Simplify right side
    12,849.81x = 140,444,161.64
  5. Step 5: Solve for x
    x = 140,444,161.64/12,849.81
  6. Step 6: Final answer
    x = 10,929.67

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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.