Home / 13,026.40-17,984.10-8,557.95

Finding the Fourth Proportional to 13,026.40, 17,984.10 and 8,557.95

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Solution

The fourth proportional to 13,026.40, 17,984.10 and 8,557.95 is: 11,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.40 : 17,984.10 = 8,557.95 : x
  2. Step 2: Convert to fraction form
    13,026.40/17,984.10 = 8,557.95/x
  3. Step 3: Cross multiply
    13,026.40x = 17,984.10 × 8,557.95
  4. Step 4: Simplify right side
    13,026.40x = 153,907,028.60
  5. Step 5: Solve for x
    x = 153,907,028.60/13,026.40
  6. Step 6: Final answer
    x = 11,815.01

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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.