Home / 13,942.66-19,236.16-7,970.10

Finding the Fourth Proportional to 13,942.66, 19,236.16 and 7,970.10

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Solution

The fourth proportional to 13,942.66, 19,236.16 and 7,970.10 is: 10,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.66 : 19,236.16 = 7,970.10 : x
  2. Step 2: Convert to fraction form
    13,942.66/19,236.16 = 7,970.10/x
  3. Step 3: Cross multiply
    13,942.66x = 19,236.16 × 7,970.10
  4. Step 4: Simplify right side
    13,942.66x = 153,314,118.82
  5. Step 5: Solve for x
    x = 153,314,118.82/13,942.66
  6. Step 6: Final answer
    x = 10,996.05

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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.