Home / 9,980.36-14,970.56-3,740.12

Finding the Fourth Proportional to 9,980.36, 14,970.56 and 3,740.12

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Solution

The fourth proportional to 9,980.36, 14,970.56 and 3,740.12 is: 5,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.36 : 14,970.56 = 3,740.12 : x
  2. Step 2: Convert to fraction form
    9,980.36/14,970.56 = 3,740.12/x
  3. Step 3: Cross multiply
    9,980.36x = 14,970.56 × 3,740.12
  4. Step 4: Simplify right side
    9,980.36x = 55,991,690.87
  5. Step 5: Solve for x
    x = 55,991,690.87/9,980.36
  6. Step 6: Final answer
    x = 5,610.19

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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.