Home / 13,316.21-18,376.43-7,348.06

Finding the Fourth Proportional to 13,316.21, 18,376.43 and 7,348.06

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Solution

The fourth proportional to 13,316.21, 18,376.43 and 7,348.06 is: 10,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.21 : 18,376.43 = 7,348.06 : x
  2. Step 2: Convert to fraction form
    13,316.21/18,376.43 = 7,348.06/x
  3. Step 3: Cross multiply
    13,316.21x = 18,376.43 × 7,348.06
  4. Step 4: Simplify right side
    13,316.21x = 135,031,082.65
  5. Step 5: Solve for x
    x = 135,031,082.65/13,316.21
  6. Step 6: Final answer
    x = 10,140.35

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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.