Home / 9,962.16-13,739.88-9,291.48

Finding the Fourth Proportional to 9,962.16, 13,739.88 and 9,291.48

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Solution

The fourth proportional to 9,962.16, 13,739.88 and 9,291.48 is: 12,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,962.16 : 13,739.88 = 9,291.48 : x
  2. Step 2: Convert to fraction form
    9,962.16/13,739.88 = 9,291.48/x
  3. Step 3: Cross multiply
    9,962.16x = 13,739.88 × 9,291.48
  4. Step 4: Simplify right side
    9,962.16x = 127,663,820.22
  5. Step 5: Solve for x
    x = 127,663,820.22/9,962.16
  6. Step 6: Final answer
    x = 12,814.87

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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.