Home / 12,455.63-17,188.76-6,866.75

Finding the Fourth Proportional to 12,455.63, 17,188.76 and 6,866.75

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Solution

The fourth proportional to 12,455.63, 17,188.76 and 6,866.75 is: 9,476.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.63 : 17,188.76 = 6,866.75 : x
  2. Step 2: Convert to fraction form
    12,455.63/17,188.76 = 6,866.75/x
  3. Step 3: Cross multiply
    12,455.63x = 17,188.76 × 6,866.75
  4. Step 4: Simplify right side
    12,455.63x = 118,030,848.95
  5. Step 5: Solve for x
    x = 118,030,848.95/12,455.63
  6. Step 6: Final answer
    x = 9,476.11

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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.