Home / 12,370.32-17,075.61-8,383.50

Finding the Fourth Proportional to 12,370.32, 17,075.61 and 8,383.50

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Solution

The fourth proportional to 12,370.32, 17,075.61 and 8,383.50 is: 11,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.32 : 17,075.61 = 8,383.50 : x
  2. Step 2: Convert to fraction form
    12,370.32/17,075.61 = 8,383.50/x
  3. Step 3: Cross multiply
    12,370.32x = 17,075.61 × 8,383.50
  4. Step 4: Simplify right side
    12,370.32x = 143,153,376.44
  5. Step 5: Solve for x
    x = 143,153,376.44/12,370.32
  6. Step 6: Final answer
    x = 11,572.33

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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.