Home / 12,718.74-19,079.40-4,715.67

Finding the Fourth Proportional to 12,718.74, 19,079.40 and 4,715.67

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Solution

The fourth proportional to 12,718.74, 19,079.40 and 4,715.67 is: 7,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.74 : 19,079.40 = 4,715.67 : x
  2. Step 2: Convert to fraction form
    12,718.74/19,079.40 = 4,715.67/x
  3. Step 3: Cross multiply
    12,718.74x = 19,079.40 × 4,715.67
  4. Step 4: Simplify right side
    12,718.74x = 89,972,154.20
  5. Step 5: Solve for x
    x = 89,972,154.20/12,718.74
  6. Step 6: Final answer
    x = 7,073.98

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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.