Home / 12,804.40-17,669.60-7,214.32

Finding the Fourth Proportional to 12,804.40, 17,669.60 and 7,214.32

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Solution

The fourth proportional to 12,804.40, 17,669.60 and 7,214.32 is: 9,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.40 : 17,669.60 = 7,214.32 : x
  2. Step 2: Convert to fraction form
    12,804.40/17,669.60 = 7,214.32/x
  3. Step 3: Cross multiply
    12,804.40x = 17,669.60 × 7,214.32
  4. Step 4: Simplify right side
    12,804.40x = 127,474,148.67
  5. Step 5: Solve for x
    x = 127,474,148.67/12,804.40
  6. Step 6: Final answer
    x = 9,955.50

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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.