Home / 12,869.57-19,302.53-4,975.81

Finding the Fourth Proportional to 12,869.57, 19,302.53 and 4,975.81

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Solution

The fourth proportional to 12,869.57, 19,302.53 and 4,975.81 is: 7,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.57 : 19,302.53 = 4,975.81 : x
  2. Step 2: Convert to fraction form
    12,869.57/19,302.53 = 4,975.81/x
  3. Step 3: Cross multiply
    12,869.57x = 19,302.53 × 4,975.81
  4. Step 4: Simplify right side
    12,869.57x = 96,045,685.98
  5. Step 5: Solve for x
    x = 96,045,685.98/12,869.57
  6. Step 6: Final answer
    x = 7,463.01

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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.