Home / 12,423.81-18,636.93-4,630.80

Finding the Fourth Proportional to 12,423.81, 18,636.93 and 4,630.80

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Solution

The fourth proportional to 12,423.81, 18,636.93 and 4,630.80 is: 6,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.81 : 18,636.93 = 4,630.80 : x
  2. Step 2: Convert to fraction form
    12,423.81/18,636.93 = 4,630.80/x
  3. Step 3: Cross multiply
    12,423.81x = 18,636.93 × 4,630.80
  4. Step 4: Simplify right side
    12,423.81x = 86,303,895.44
  5. Step 5: Solve for x
    x = 86,303,895.44/12,423.81
  6. Step 6: Final answer
    x = 6,946.65

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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.