Home / 13,038.08-19,531.20-7,180.16

Finding the Fourth Proportional to 13,038.08, 19,531.20 and 7,180.16

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Solution

The fourth proportional to 13,038.08, 19,531.20 and 7,180.16 is: 10,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.08 : 19,531.20 = 7,180.16 : x
  2. Step 2: Convert to fraction form
    13,038.08/19,531.20 = 7,180.16/x
  3. Step 3: Cross multiply
    13,038.08x = 19,531.20 × 7,180.16
  4. Step 4: Simplify right side
    13,038.08x = 140,237,140.99
  5. Step 5: Solve for x
    x = 140,237,140.99/13,038.08
  6. Step 6: Final answer
    x = 10,755.97

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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.