Home / 13,075.39-19,613.09-5,289.67

Finding the Fourth Proportional to 13,075.39, 19,613.09 and 5,289.67

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Solution

The fourth proportional to 13,075.39, 19,613.09 and 5,289.67 is: 7,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.39 : 19,613.09 = 5,289.67 : x
  2. Step 2: Convert to fraction form
    13,075.39/19,613.09 = 5,289.67/x
  3. Step 3: Cross multiply
    13,075.39x = 19,613.09 × 5,289.67
  4. Step 4: Simplify right side
    13,075.39x = 103,746,773.78
  5. Step 5: Solve for x
    x = 103,746,773.78/13,075.39
  6. Step 6: Final answer
    x = 7,934.51

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Similar ratio
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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.