Home / 26,440.84-39,660.63-7,720.12

Finding the Fourth Proportional to 26,440.84, 39,660.63 and 7,720.12

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Solution

The fourth proportional to 26,440.84, 39,660.63 and 7,720.12 is: 11,580.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,440.84 : 39,660.63 = 7,720.12 : x
  2. Step 2: Convert to fraction form
    26,440.84/39,660.63 = 7,720.12/x
  3. Step 3: Cross multiply
    26,440.84x = 39,660.63 × 7,720.12
  4. Step 4: Simplify right side
    26,440.84x = 306,184,822.88
  5. Step 5: Solve for x
    x = 306,184,822.88/26,440.84
  6. Step 6: Final answer
    x = 11,580.00

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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.