Home / 13,316.05-18,376.26-7,348.12

Finding the Fourth Proportional to 13,316.05, 18,376.26 and 7,348.12

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Solution

The fourth proportional to 13,316.05, 18,376.26 and 7,348.12 is: 10,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.05 : 18,376.26 = 7,348.12 : x
  2. Step 2: Convert to fraction form
    13,316.05/18,376.26 = 7,348.12/x
  3. Step 3: Cross multiply
    13,316.05x = 18,376.26 × 7,348.12
  4. Step 4: Simplify right side
    13,316.05x = 135,030,835.01
  5. Step 5: Solve for x
    x = 135,030,835.01/13,316.05
  6. Step 6: Final answer
    x = 10,140.46

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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.