Home / 18,439.60-25,448.16-10,484.32

Finding the Fourth Proportional to 18,439.60, 25,448.16 and 10,484.32

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Solution

The fourth proportional to 18,439.60, 25,448.16 and 10,484.32 is: 14,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.60 : 25,448.16 = 10,484.32 : x
  2. Step 2: Convert to fraction form
    18,439.60/25,448.16 = 10,484.32/x
  3. Step 3: Cross multiply
    18,439.60x = 25,448.16 × 10,484.32
  4. Step 4: Simplify right side
    18,439.60x = 266,806,652.85
  5. Step 5: Solve for x
    x = 266,806,652.85/18,439.60
  6. Step 6: Final answer
    x = 14,469.22

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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.