Home / 15,783.78-23,670.96-13,003.56

Finding the Fourth Proportional to 15,783.78, 23,670.96 and 13,003.56

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Solution

The fourth proportional to 15,783.78, 23,670.96 and 13,003.56 is: 19,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.78 : 23,670.96 = 13,003.56 : x
  2. Step 2: Convert to fraction form
    15,783.78/23,670.96 = 13,003.56/x
  3. Step 3: Cross multiply
    15,783.78x = 23,670.96 × 13,003.56
  4. Step 4: Simplify right side
    15,783.78x = 307,806,748.62
  5. Step 5: Solve for x
    x = 307,806,748.62/15,783.78
  6. Step 6: Final answer
    x = 19,501.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.