Home / 7,424.63-11,136.65-1,877.90

Finding the Fourth Proportional to 7,424.63, 11,136.65 and 1,877.90

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Solution

The fourth proportional to 7,424.63, 11,136.65 and 1,877.90 is: 2,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.63 : 11,136.65 = 1,877.90 : x
  2. Step 2: Convert to fraction form
    7,424.63/11,136.65 = 1,877.90/x
  3. Step 3: Cross multiply
    7,424.63x = 11,136.65 × 1,877.90
  4. Step 4: Simplify right side
    7,424.63x = 20,913,449.96
  5. Step 5: Solve for x
    x = 20,913,449.96/7,424.63
  6. Step 6: Final answer
    x = 2,816.77

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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.