Home / 9,317.68-12,858.35-5,173.69

Finding the Fourth Proportional to 9,317.68, 12,858.35 and 5,173.69

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Solution

The fourth proportional to 9,317.68, 12,858.35 and 5,173.69 is: 7,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.68 : 12,858.35 = 5,173.69 : x
  2. Step 2: Convert to fraction form
    9,317.68/12,858.35 = 5,173.69/x
  3. Step 3: Cross multiply
    9,317.68x = 12,858.35 × 5,173.69
  4. Step 4: Simplify right side
    9,317.68x = 66,525,116.81
  5. Step 5: Solve for x
    x = 66,525,116.81/9,317.68
  6. Step 6: Final answer
    x = 7,139.67

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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.