Home / 12,811.02-19,222.45-4,910.93

Finding the Fourth Proportional to 12,811.02, 19,222.45 and 4,910.93

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Solution

The fourth proportional to 12,811.02, 19,222.45 and 4,910.93 is: 7,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.02 : 19,222.45 = 4,910.93 : x
  2. Step 2: Convert to fraction form
    12,811.02/19,222.45 = 4,910.93/x
  3. Step 3: Cross multiply
    12,811.02x = 19,222.45 × 4,910.93
  4. Step 4: Simplify right side
    12,811.02x = 94,400,142.16
  5. Step 5: Solve for x
    x = 94,400,142.16/12,811.02
  6. Step 6: Final answer
    x = 7,368.67

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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.