Home / 11,130.03-15,352.34-7,771.59

Finding the Fourth Proportional to 11,130.03, 15,352.34 and 7,771.59

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Solution

The fourth proportional to 11,130.03, 15,352.34 and 7,771.59 is: 10,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.03 : 15,352.34 = 7,771.59 : x
  2. Step 2: Convert to fraction form
    11,130.03/15,352.34 = 7,771.59/x
  3. Step 3: Cross multiply
    11,130.03x = 15,352.34 × 7,771.59
  4. Step 4: Simplify right side
    11,130.03x = 119,312,053.16
  5. Step 5: Solve for x
    x = 119,312,053.16/11,130.03
  6. Step 6: Final answer
    x = 10,719.83

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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.