Home / 13,729.32-20,583.58-4,842.28

Finding the Fourth Proportional to 13,729.32, 20,583.58 and 4,842.28

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Solution

The fourth proportional to 13,729.32, 20,583.58 and 4,842.28 is: 7,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.32 : 20,583.58 = 4,842.28 : x
  2. Step 2: Convert to fraction form
    13,729.32/20,583.58 = 4,842.28/x
  3. Step 3: Cross multiply
    13,729.32x = 20,583.58 × 4,842.28
  4. Step 4: Simplify right side
    13,729.32x = 99,671,457.76
  5. Step 5: Solve for x
    x = 99,671,457.76/13,729.32
  6. Step 6: Final answer
    x = 7,259.75

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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.