Home / 8,823.92-12,146.40-7,628.36

Finding the Fourth Proportional to 8,823.92, 12,146.40 and 7,628.36

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Solution

The fourth proportional to 8,823.92, 12,146.40 and 7,628.36 is: 10,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.92 : 12,146.40 = 7,628.36 : x
  2. Step 2: Convert to fraction form
    8,823.92/12,146.40 = 7,628.36/x
  3. Step 3: Cross multiply
    8,823.92x = 12,146.40 × 7,628.36
  4. Step 4: Simplify right side
    8,823.92x = 92,657,111.90
  5. Step 5: Solve for x
    x = 92,657,111.90/8,823.92
  6. Step 6: Final answer
    x = 10,500.67

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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.