Home / 10,629.20-14,669.64-5,915.60

Finding the Fourth Proportional to 10,629.20, 14,669.64 and 5,915.60

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Solution

The fourth proportional to 10,629.20, 14,669.64 and 5,915.60 is: 8,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.20 : 14,669.64 = 5,915.60 : x
  2. Step 2: Convert to fraction form
    10,629.20/14,669.64 = 5,915.60/x
  3. Step 3: Cross multiply
    10,629.20x = 14,669.64 × 5,915.60
  4. Step 4: Simplify right side
    10,629.20x = 86,779,722.38
  5. Step 5: Solve for x
    x = 86,779,722.38/10,629.20
  6. Step 6: Final answer
    x = 8,164.28

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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.