Home / 9,520.70-13,138.54-5,271.98

Finding the Fourth Proportional to 9,520.70, 13,138.54 and 5,271.98

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Solution

The fourth proportional to 9,520.70, 13,138.54 and 5,271.98 is: 7,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.70 : 13,138.54 = 5,271.98 : x
  2. Step 2: Convert to fraction form
    9,520.70/13,138.54 = 5,271.98/x
  3. Step 3: Cross multiply
    9,520.70x = 13,138.54 × 5,271.98
  4. Step 4: Simplify right side
    9,520.70x = 69,266,041.24
  5. Step 5: Solve for x
    x = 69,266,041.24/9,520.70
  6. Step 6: Final answer
    x = 7,275.31

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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.