Home / 13,178.61-19,756.76-5,777.46

Finding the Fourth Proportional to 13,178.61, 19,756.76 and 5,777.46

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Solution

The fourth proportional to 13,178.61, 19,756.76 and 5,777.46 is: 8,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.61 : 19,756.76 = 5,777.46 : x
  2. Step 2: Convert to fraction form
    13,178.61/19,756.76 = 5,777.46/x
  3. Step 3: Cross multiply
    13,178.61x = 19,756.76 × 5,777.46
  4. Step 4: Simplify right side
    13,178.61x = 114,143,861.74
  5. Step 5: Solve for x
    x = 114,143,861.74/13,178.61
  6. Step 6: Final answer
    x = 8,661.30

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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.