Home / 13,113.54-19,646.99-7,555.40

Finding the Fourth Proportional to 13,113.54, 19,646.99 and 7,555.40

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Solution

The fourth proportional to 13,113.54, 19,646.99 and 7,555.40 is: 11,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.54 : 19,646.99 = 7,555.40 : x
  2. Step 2: Convert to fraction form
    13,113.54/19,646.99 = 7,555.40/x
  3. Step 3: Cross multiply
    13,113.54x = 19,646.99 × 7,555.40
  4. Step 4: Simplify right side
    13,113.54x = 148,440,907.92
  5. Step 5: Solve for x
    x = 148,440,907.92/13,113.54
  6. Step 6: Final answer
    x = 11,319.67

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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.