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Finding the Fourth Proportional to 12,375.63, 18,555.93 and 4,870.22

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Solution

The fourth proportional to 12,375.63, 18,555.93 and 4,870.22 is: 7,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.63 : 18,555.93 = 4,870.22 : x
  2. Step 2: Convert to fraction form
    12,375.63/18,555.93 = 4,870.22/x
  3. Step 3: Cross multiply
    12,375.63x = 18,555.93 × 4,870.22
  4. Step 4: Simplify right side
    12,375.63x = 90,371,368.62
  5. Step 5: Solve for x
    x = 90,371,368.62/12,375.63
  6. Step 6: Final answer
    x = 7,302.37

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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.