Home / 13,519.41-18,656.70-7,551.06

Finding the Fourth Proportional to 13,519.41, 18,656.70 and 7,551.06

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Solution

The fourth proportional to 13,519.41, 18,656.70 and 7,551.06 is: 10,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.41 : 18,656.70 = 7,551.06 : x
  2. Step 2: Convert to fraction form
    13,519.41/18,656.70 = 7,551.06/x
  3. Step 3: Cross multiply
    13,519.41x = 18,656.70 × 7,551.06
  4. Step 4: Simplify right side
    13,519.41x = 140,877,861.10
  5. Step 5: Solve for x
    x = 140,877,861.10/13,519.41
  6. Step 6: Final answer
    x = 10,420.41

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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.