Home / 8,623.04-12,928.80-2,697.92

Finding the Fourth Proportional to 8,623.04, 12,928.80 and 2,697.92

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Solution

The fourth proportional to 8,623.04, 12,928.80 and 2,697.92 is: 4,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.04 : 12,928.80 = 2,697.92 : x
  2. Step 2: Convert to fraction form
    8,623.04/12,928.80 = 2,697.92/x
  3. Step 3: Cross multiply
    8,623.04x = 12,928.80 × 2,697.92
  4. Step 4: Simplify right side
    8,623.04x = 34,880,868.10
  5. Step 5: Solve for x
    x = 34,880,868.10/8,623.04
  6. Step 6: Final answer
    x = 4,045.08

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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.