Home / 13,853.42-19,117.62-7,565.80

Finding the Fourth Proportional to 13,853.42, 19,117.62 and 7,565.80

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Solution

The fourth proportional to 13,853.42, 19,117.62 and 7,565.80 is: 10,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.42 : 19,117.62 = 7,565.80 : x
  2. Step 2: Convert to fraction form
    13,853.42/19,117.62 = 7,565.80/x
  3. Step 3: Cross multiply
    13,853.42x = 19,117.62 × 7,565.80
  4. Step 4: Simplify right side
    13,853.42x = 144,640,089.40
  5. Step 5: Solve for x
    x = 144,640,089.40/13,853.42
  6. Step 6: Final answer
    x = 10,440.75

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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.