Home / 12,890.03-17,788.28-7,301.03

Finding the Fourth Proportional to 12,890.03, 17,788.28 and 7,301.03

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Solution

The fourth proportional to 12,890.03, 17,788.28 and 7,301.03 is: 10,075.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.03 : 17,788.28 = 7,301.03 : x
  2. Step 2: Convert to fraction form
    12,890.03/17,788.28 = 7,301.03/x
  3. Step 3: Cross multiply
    12,890.03x = 17,788.28 × 7,301.03
  4. Step 4: Simplify right side
    12,890.03x = 129,872,729.42
  5. Step 5: Solve for x
    x = 129,872,729.42/12,890.03
  6. Step 6: Final answer
    x = 10,075.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.