Home / 12,862.28-19,271.40-7,022.98

Finding the Fourth Proportional to 12,862.28, 19,271.40 and 7,022.98

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Solution

The fourth proportional to 12,862.28, 19,271.40 and 7,022.98 is: 10,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.28 : 19,271.40 = 7,022.98 : x
  2. Step 2: Convert to fraction form
    12,862.28/19,271.40 = 7,022.98/x
  3. Step 3: Cross multiply
    12,862.28x = 19,271.40 × 7,022.98
  4. Step 4: Simplify right side
    12,862.28x = 135,342,656.77
  5. Step 5: Solve for x
    x = 135,342,656.77/12,862.28
  6. Step 6: Final answer
    x = 10,522.45

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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.