Home / 13,459.03-18,571.28-7,490.54

Finding the Fourth Proportional to 13,459.03, 18,571.28 and 7,490.54

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Solution

The fourth proportional to 13,459.03, 18,571.28 and 7,490.54 is: 10,335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.03 : 18,571.28 = 7,490.54 : x
  2. Step 2: Convert to fraction form
    13,459.03/18,571.28 = 7,490.54/x
  3. Step 3: Cross multiply
    13,459.03x = 18,571.28 × 7,490.54
  4. Step 4: Simplify right side
    13,459.03x = 139,108,924.67
  5. Step 5: Solve for x
    x = 139,108,924.67/13,459.03
  6. Step 6: Final answer
    x = 10,335.73

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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.