Home / 13,939.11-19,235.54-7,565.40

Finding the Fourth Proportional to 13,939.11, 19,235.54 and 7,565.40

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Solution

The fourth proportional to 13,939.11, 19,235.54 and 7,565.40 is: 10,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.11 : 19,235.54 = 7,565.40 : x
  2. Step 2: Convert to fraction form
    13,939.11/19,235.54 = 7,565.40/x
  3. Step 3: Cross multiply
    13,939.11x = 19,235.54 × 7,565.40
  4. Step 4: Simplify right side
    13,939.11x = 145,524,573.23
  5. Step 5: Solve for x
    x = 145,524,573.23/13,939.11
  6. Step 6: Final answer
    x = 10,440.02

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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.