Home / 10,283.37-14,177.33-7,720.28

Finding the Fourth Proportional to 10,283.37, 14,177.33 and 7,720.28

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Solution

The fourth proportional to 10,283.37, 14,177.33 and 7,720.28 is: 10,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283.37 : 14,177.33 = 7,720.28 : x
  2. Step 2: Convert to fraction form
    10,283.37/14,177.33 = 7,720.28/x
  3. Step 3: Cross multiply
    10,283.37x = 14,177.33 × 7,720.28
  4. Step 4: Simplify right side
    10,283.37x = 109,452,929.88
  5. Step 5: Solve for x
    x = 109,452,929.88/10,283.37
  6. Step 6: Final answer
    x = 10,643.68

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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.