Home / 10,681.96-14,647.40-10,311.16

Finding the Fourth Proportional to 10,681.96, 14,647.40 and 10,311.16

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Solution

The fourth proportional to 10,681.96, 14,647.40 and 10,311.16 is: 14,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.96 : 14,647.40 = 10,311.16 : x
  2. Step 2: Convert to fraction form
    10,681.96/14,647.40 = 10,311.16/x
  3. Step 3: Cross multiply
    10,681.96x = 14,647.40 × 10,311.16
  4. Step 4: Simplify right side
    10,681.96x = 151,031,684.98
  5. Step 5: Solve for x
    x = 151,031,684.98/10,681.96
  6. Step 6: Final answer
    x = 14,138.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.