Home / 10,245.06-14,142.54-6,889.81

Finding the Fourth Proportional to 10,245.06, 14,142.54 and 6,889.81

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Solution

The fourth proportional to 10,245.06, 14,142.54 and 6,889.81 is: 9,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.06 : 14,142.54 = 6,889.81 : x
  2. Step 2: Convert to fraction form
    10,245.06/14,142.54 = 6,889.81/x
  3. Step 3: Cross multiply
    10,245.06x = 14,142.54 × 6,889.81
  4. Step 4: Simplify right side
    10,245.06x = 97,439,413.52
  5. Step 5: Solve for x
    x = 97,439,413.52/10,245.06
  6. Step 6: Final answer
    x = 9,510.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.