Home / 8,510.40-11,739.96-4,971.24

Finding the Fourth Proportional to 8,510.40, 11,739.96 and 4,971.24

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Solution

The fourth proportional to 8,510.40, 11,739.96 and 4,971.24 is: 6,857.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.40 : 11,739.96 = 4,971.24 : x
  2. Step 2: Convert to fraction form
    8,510.40/11,739.96 = 4,971.24/x
  3. Step 3: Cross multiply
    8,510.40x = 11,739.96 × 4,971.24
  4. Step 4: Simplify right side
    8,510.40x = 58,362,158.75
  5. Step 5: Solve for x
    x = 58,362,158.75/8,510.40
  6. Step 6: Final answer
    x = 6,857.75

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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.