Home / 13,903.28-19,186.44-7,529.80

Finding the Fourth Proportional to 13,903.28, 19,186.44 and 7,529.80

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Solution

The fourth proportional to 13,903.28, 19,186.44 and 7,529.80 is: 10,391.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.28 : 19,186.44 = 7,529.80 : x
  2. Step 2: Convert to fraction form
    13,903.28/19,186.44 = 7,529.80/x
  3. Step 3: Cross multiply
    13,903.28x = 19,186.44 × 7,529.80
  4. Step 4: Simplify right side
    13,903.28x = 144,470,055.91
  5. Step 5: Solve for x
    x = 144,470,055.91/13,903.28
  6. Step 6: Final answer
    x = 10,391.08

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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.