Home / 9,515.34-13,130.10-5,266.49

Finding the Fourth Proportional to 9,515.34, 13,130.10 and 5,266.49

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Solution

The fourth proportional to 9,515.34, 13,130.10 and 5,266.49 is: 7,267.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.34 : 13,130.10 = 5,266.49 : x
  2. Step 2: Convert to fraction form
    9,515.34/13,130.10 = 5,266.49/x
  3. Step 3: Cross multiply
    9,515.34x = 13,130.10 × 5,266.49
  4. Step 4: Simplify right side
    9,515.34x = 69,149,474.70
  5. Step 5: Solve for x
    x = 69,149,474.70/9,515.34
  6. Step 6: Final answer
    x = 7,267.16

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Double scale
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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.