Home / 10,130.37-15,195.40-5,197.16

Finding the Fourth Proportional to 10,130.37, 15,195.40 and 5,197.16

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Solution

The fourth proportional to 10,130.37, 15,195.40 and 5,197.16 is: 7,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.37 : 15,195.40 = 5,197.16 : x
  2. Step 2: Convert to fraction form
    10,130.37/15,195.40 = 5,197.16/x
  3. Step 3: Cross multiply
    10,130.37x = 15,195.40 × 5,197.16
  4. Step 4: Simplify right side
    10,130.37x = 78,972,950.06
  5. Step 5: Solve for x
    x = 78,972,950.06/10,130.37
  6. Step 6: Final answer
    x = 7,795.67

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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.