Home / 19,311.40-26,662.02-13,271.56

Finding the Fourth Proportional to 19,311.40, 26,662.02 and 13,271.56

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Solution

The fourth proportional to 19,311.40, 26,662.02 and 13,271.56 is: 18,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.40 : 26,662.02 = 13,271.56 : x
  2. Step 2: Convert to fraction form
    19,311.40/26,662.02 = 13,271.56/x
  3. Step 3: Cross multiply
    19,311.40x = 26,662.02 × 13,271.56
  4. Step 4: Simplify right side
    19,311.40x = 353,846,598.15
  5. Step 5: Solve for x
    x = 353,846,598.15/19,311.40
  6. Step 6: Final answer
    x = 18,323.20

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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.