Home / 11,215.40-15,477.75-6,741.23

Finding the Fourth Proportional to 11,215.40, 15,477.75 and 6,741.23

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Solution

The fourth proportional to 11,215.40, 15,477.75 and 6,741.23 is: 9,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.40 : 15,477.75 = 6,741.23 : x
  2. Step 2: Convert to fraction form
    11,215.40/15,477.75 = 6,741.23/x
  3. Step 3: Cross multiply
    11,215.40x = 15,477.75 × 6,741.23
  4. Step 4: Simplify right side
    11,215.40x = 104,338,995.24
  5. Step 5: Solve for x
    x = 104,338,995.24/11,215.40
  6. Step 6: Final answer
    x = 9,303.19

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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.