Home / 8,964.45-12,370.88-4,985.55

Finding the Fourth Proportional to 8,964.45, 12,370.88 and 4,985.55

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Solution

The fourth proportional to 8,964.45, 12,370.88 and 4,985.55 is: 6,880.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.45 : 12,370.88 = 4,985.55 : x
  2. Step 2: Convert to fraction form
    8,964.45/12,370.88 = 4,985.55/x
  3. Step 3: Cross multiply
    8,964.45x = 12,370.88 × 4,985.55
  4. Step 4: Simplify right side
    8,964.45x = 61,675,653.25
  5. Step 5: Solve for x
    x = 61,675,653.25/8,964.45
  6. Step 6: Final answer
    x = 6,880.03

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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.