Home / 12,487.24-18,730.81-5,918.04

Finding the Fourth Proportional to 12,487.24, 18,730.81 and 5,918.04

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Solution

The fourth proportional to 12,487.24, 18,730.81 and 5,918.04 is: 8,877.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.24 : 18,730.81 = 5,918.04 : x
  2. Step 2: Convert to fraction form
    12,487.24/18,730.81 = 5,918.04/x
  3. Step 3: Cross multiply
    12,487.24x = 18,730.81 × 5,918.04
  4. Step 4: Simplify right side
    12,487.24x = 110,849,653.22
  5. Step 5: Solve for x
    x = 110,849,653.22/12,487.24
  6. Step 6: Final answer
    x = 8,877.03

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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.