Home / 12,804.03-17,670.66-7,139.10

Finding the Fourth Proportional to 12,804.03, 17,670.66 and 7,139.10

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Solution

The fourth proportional to 12,804.03, 17,670.66 and 7,139.10 is: 9,852.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.03 : 17,670.66 = 7,139.10 : x
  2. Step 2: Convert to fraction form
    12,804.03/17,670.66 = 7,139.10/x
  3. Step 3: Cross multiply
    12,804.03x = 17,670.66 × 7,139.10
  4. Step 4: Simplify right side
    12,804.03x = 126,152,608.81
  5. Step 5: Solve for x
    x = 126,152,608.81/12,804.03
  6. Step 6: Final answer
    x = 9,852.57

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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.