Home / 12,883.74-19,319.61-7,548.53

Finding the Fourth Proportional to 12,883.74, 19,319.61 and 7,548.53

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Solution

The fourth proportional to 12,883.74, 19,319.61 and 7,548.53 is: 11,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.74 : 19,319.61 = 7,548.53 : x
  2. Step 2: Convert to fraction form
    12,883.74/19,319.61 = 7,548.53/x
  3. Step 3: Cross multiply
    12,883.74x = 19,319.61 × 7,548.53
  4. Step 4: Simplify right side
    12,883.74x = 145,834,587.38
  5. Step 5: Solve for x
    x = 145,834,587.38/12,883.74
  6. Step 6: Final answer
    x = 11,319.27

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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.