Home / 7,918.48-11,880.15-4,992.76

Finding the Fourth Proportional to 7,918.48, 11,880.15 and 4,992.76

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Solution

The fourth proportional to 7,918.48, 11,880.15 and 4,992.76 is: 7,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.48 : 11,880.15 = 4,992.76 : x
  2. Step 2: Convert to fraction form
    7,918.48/11,880.15 = 4,992.76/x
  3. Step 3: Cross multiply
    7,918.48x = 11,880.15 × 4,992.76
  4. Step 4: Simplify right side
    7,918.48x = 59,314,737.71
  5. Step 5: Solve for x
    x = 59,314,737.71/7,918.48
  6. Step 6: Final answer
    x = 7,490.67

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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.