Home / 7,431.48-10,255.45-4,287.67

Finding the Fourth Proportional to 7,431.48, 10,255.45 and 4,287.67

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Solution

The fourth proportional to 7,431.48, 10,255.45 and 4,287.67 is: 5,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.48 : 10,255.45 = 4,287.67 : x
  2. Step 2: Convert to fraction form
    7,431.48/10,255.45 = 4,287.67/x
  3. Step 3: Cross multiply
    7,431.48x = 10,255.45 × 4,287.67
  4. Step 4: Simplify right side
    7,431.48x = 43,971,985.30
  5. Step 5: Solve for x
    x = 43,971,985.30/7,431.48
  6. Step 6: Final answer
    x = 5,916.99

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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.