Home / 6,409.23-9,612.89-5,320.59

Finding the Fourth Proportional to 6,409.23, 9,612.89 and 5,320.59

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Solution

The fourth proportional to 6,409.23, 9,612.89 and 5,320.59 is: 7,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.23 : 9,612.89 = 5,320.59 : x
  2. Step 2: Convert to fraction form
    6,409.23/9,612.89 = 5,320.59/x
  3. Step 3: Cross multiply
    6,409.23x = 9,612.89 × 5,320.59
  4. Step 4: Simplify right side
    6,409.23x = 51,146,219.80
  5. Step 5: Solve for x
    x = 51,146,219.80/6,409.23
  6. Step 6: Final answer
    x = 7,980.09

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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.