Home / 15,786.80-23,679.90-6,426.74

Finding the Fourth Proportional to 15,786.80, 23,679.90 and 6,426.74

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Solution

The fourth proportional to 15,786.80, 23,679.90 and 6,426.74 is: 9,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.80 : 23,679.90 = 6,426.74 : x
  2. Step 2: Convert to fraction form
    15,786.80/23,679.90 = 6,426.74/x
  3. Step 3: Cross multiply
    15,786.80x = 23,679.90 × 6,426.74
  4. Step 4: Simplify right side
    15,786.80x = 152,184,560.53
  5. Step 5: Solve for x
    x = 152,184,560.53/15,786.80
  6. Step 6: Final answer
    x = 9,639.99

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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.