Home / 13,047.04-18,003.52-7,457.92

Finding the Fourth Proportional to 13,047.04, 18,003.52 and 7,457.92

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Solution

The fourth proportional to 13,047.04, 18,003.52 and 7,457.92 is: 10,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.04 : 18,003.52 = 7,457.92 : x
  2. Step 2: Convert to fraction form
    13,047.04/18,003.52 = 7,457.92/x
  3. Step 3: Cross multiply
    13,047.04x = 18,003.52 × 7,457.92
  4. Step 4: Simplify right side
    13,047.04x = 134,268,811.88
  5. Step 5: Solve for x
    x = 134,268,811.88/13,047.04
  6. Step 6: Final answer
    x = 10,291.13

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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.