Home / 12,756.96-19,136.88-5,360.04

Finding the Fourth Proportional to 12,756.96, 19,136.88 and 5,360.04

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Solution

The fourth proportional to 12,756.96, 19,136.88 and 5,360.04 is: 8,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.96 : 19,136.88 = 5,360.04 : x
  2. Step 2: Convert to fraction form
    12,756.96/19,136.88 = 5,360.04/x
  3. Step 3: Cross multiply
    12,756.96x = 19,136.88 × 5,360.04
  4. Step 4: Simplify right side
    12,756.96x = 102,574,442.28
  5. Step 5: Solve for x
    x = 102,574,442.28/12,756.96
  6. Step 6: Final answer
    x = 8,040.67

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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.