Home / 13,312.13-18,372.56-8,595.50

Finding the Fourth Proportional to 13,312.13, 18,372.56 and 8,595.50

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Solution

The fourth proportional to 13,312.13, 18,372.56 and 8,595.50 is: 11,862.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.13 : 18,372.56 = 8,595.50 : x
  2. Step 2: Convert to fraction form
    13,312.13/18,372.56 = 8,595.50/x
  3. Step 3: Cross multiply
    13,312.13x = 18,372.56 × 8,595.50
  4. Step 4: Simplify right side
    13,312.13x = 157,921,204.64
  5. Step 5: Solve for x
    x = 157,921,204.64/13,312.13
  6. Step 6: Final answer
    x = 11,862.96

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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.