Home / 13,808.27-19,055.40-7,520.64

Finding the Fourth Proportional to 13,808.27, 19,055.40 and 7,520.64

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Solution

The fourth proportional to 13,808.27, 19,055.40 and 7,520.64 is: 10,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.27 : 19,055.40 = 7,520.64 : x
  2. Step 2: Convert to fraction form
    13,808.27/19,055.40 = 7,520.64/x
  3. Step 3: Cross multiply
    13,808.27x = 19,055.40 × 7,520.64
  4. Step 4: Simplify right side
    13,808.27x = 143,308,803.46
  5. Step 5: Solve for x
    x = 143,308,803.46/13,808.27
  6. Step 6: Final answer
    x = 10,378.48

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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.