Home / 8,280.95-11,410.40-5,623.74

Finding the Fourth Proportional to 8,280.95, 11,410.40 and 5,623.74

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Solution

The fourth proportional to 8,280.95, 11,410.40 and 5,623.74 is: 7,749.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.95 : 11,410.40 = 5,623.74 : x
  2. Step 2: Convert to fraction form
    8,280.95/11,410.40 = 5,623.74/x
  3. Step 3: Cross multiply
    8,280.95x = 11,410.40 × 5,623.74
  4. Step 4: Simplify right side
    8,280.95x = 64,169,136.96
  5. Step 5: Solve for x
    x = 64,169,136.96/8,280.95
  6. Step 6: Final answer
    x = 7,749.01

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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.