Home / 9,816.12-14,720.13-3,971.16

Finding the Fourth Proportional to 9,816.12, 14,720.13 and 3,971.16

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Solution

The fourth proportional to 9,816.12, 14,720.13 and 3,971.16 is: 5,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.12 : 14,720.13 = 3,971.16 : x
  2. Step 2: Convert to fraction form
    9,816.12/14,720.13 = 3,971.16/x
  3. Step 3: Cross multiply
    9,816.12x = 14,720.13 × 3,971.16
  4. Step 4: Simplify right side
    9,816.12x = 58,455,991.45
  5. Step 5: Solve for x
    x = 58,455,991.45/9,816.12
  6. Step 6: Final answer
    x = 5,955.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.