Home / 12,817.38-19,206.63-9,515.01

Finding the Fourth Proportional to 12,817.38, 19,206.63 and 9,515.01

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Solution

The fourth proportional to 12,817.38, 19,206.63 and 9,515.01 is: 14,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.38 : 19,206.63 = 9,515.01 : x
  2. Step 2: Convert to fraction form
    12,817.38/19,206.63 = 9,515.01/x
  3. Step 3: Cross multiply
    12,817.38x = 19,206.63 × 9,515.01
  4. Step 4: Simplify right side
    12,817.38x = 182,751,276.52
  5. Step 5: Solve for x
    x = 182,751,276.52/12,817.38
  6. Step 6: Final answer
    x = 14,258.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.