Home / 13,403.04-18,505.44-10,253.76

Finding the Fourth Proportional to 13,403.04, 18,505.44 and 10,253.76

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Solution

The fourth proportional to 13,403.04, 18,505.44 and 10,253.76 is: 14,157.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.04 : 18,505.44 = 10,253.76 : x
  2. Step 2: Convert to fraction form
    13,403.04/18,505.44 = 10,253.76/x
  3. Step 3: Cross multiply
    13,403.04x = 18,505.44 × 10,253.76
  4. Step 4: Simplify right side
    13,403.04x = 189,750,340.45
  5. Step 5: Solve for x
    x = 189,750,340.45/13,403.04
  6. Step 6: Final answer
    x = 14,157.26

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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.