Home / 18,840.75-26,001.45-10,457.25

Finding the Fourth Proportional to 18,840.75, 26,001.45 and 10,457.25

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Solution

The fourth proportional to 18,840.75, 26,001.45 and 10,457.25 is: 14,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.75 : 26,001.45 = 10,457.25 : x
  2. Step 2: Convert to fraction form
    18,840.75/26,001.45 = 10,457.25/x
  3. Step 3: Cross multiply
    18,840.75x = 26,001.45 × 10,457.25
  4. Step 4: Simplify right side
    18,840.75x = 271,903,663.01
  5. Step 5: Solve for x
    x = 271,903,663.01/18,840.75
  6. Step 6: Final answer
    x = 14,431.68

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Half scale
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Double scale
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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.