Home / 12,475.75-17,216.55-6,886.75

Finding the Fourth Proportional to 12,475.75, 17,216.55 and 6,886.75

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Solution

The fourth proportional to 12,475.75, 17,216.55 and 6,886.75 is: 9,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.75 : 17,216.55 = 6,886.75 : x
  2. Step 2: Convert to fraction form
    12,475.75/17,216.55 = 6,886.75/x
  3. Step 3: Cross multiply
    12,475.75x = 17,216.55 × 6,886.75
  4. Step 4: Simplify right side
    12,475.75x = 118,566,075.71
  5. Step 5: Solve for x
    x = 118,566,075.71/12,475.75
  6. Step 6: Final answer
    x = 9,503.72

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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.