Home / 8,303.22-11,459.70-5,160.42

Finding the Fourth Proportional to 8,303.22, 11,459.70 and 5,160.42

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Solution

The fourth proportional to 8,303.22, 11,459.70 and 5,160.42 is: 7,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.22 : 11,459.70 = 5,160.42 : x
  2. Step 2: Convert to fraction form
    8,303.22/11,459.70 = 5,160.42/x
  3. Step 3: Cross multiply
    8,303.22x = 11,459.70 × 5,160.42
  4. Step 4: Simplify right side
    8,303.22x = 59,136,865.07
  5. Step 5: Solve for x
    x = 59,136,865.07/8,303.22
  6. Step 6: Final answer
    x = 7,122.16

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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.