Home / 13,572.08-18,730.16-8,266.04

Finding the Fourth Proportional to 13,572.08, 18,730.16 and 8,266.04

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Solution

The fourth proportional to 13,572.08, 18,730.16 and 8,266.04 is: 11,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.08 : 18,730.16 = 8,266.04 : x
  2. Step 2: Convert to fraction form
    13,572.08/18,730.16 = 8,266.04/x
  3. Step 3: Cross multiply
    13,572.08x = 18,730.16 × 8,266.04
  4. Step 4: Simplify right side
    13,572.08x = 154,824,251.77
  5. Step 5: Solve for x
    x = 154,824,251.77/13,572.08
  6. Step 6: Final answer
    x = 11,407.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.