Home / 13,316.32-18,376.44-7,347.96

Finding the Fourth Proportional to 13,316.32, 18,376.44 and 7,347.96

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Solution

The fourth proportional to 13,316.32, 18,376.44 and 7,347.96 is: 10,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.32 : 18,376.44 = 7,347.96 : x
  2. Step 2: Convert to fraction form
    13,316.32/18,376.44 = 7,347.96/x
  3. Step 3: Cross multiply
    13,316.32x = 18,376.44 × 7,347.96
  4. Step 4: Simplify right side
    13,316.32x = 135,029,346.06
  5. Step 5: Solve for x
    x = 135,029,346.06/13,316.32
  6. Step 6: Final answer
    x = 10,140.14

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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.