Home / 12,004.32-16,563.60-10,915.68

Finding the Fourth Proportional to 12,004.32, 16,563.60 and 10,915.68

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Solution

The fourth proportional to 12,004.32, 16,563.60 and 10,915.68 is: 15,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.32 : 16,563.60 = 10,915.68 : x
  2. Step 2: Convert to fraction form
    12,004.32/16,563.60 = 10,915.68/x
  3. Step 3: Cross multiply
    12,004.32x = 16,563.60 × 10,915.68
  4. Step 4: Simplify right side
    12,004.32x = 180,802,957.25
  5. Step 5: Solve for x
    x = 180,802,957.25/12,004.32
  6. Step 6: Final answer
    x = 15,061.49

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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.