Home / 19,643.07-27,106.55-10,690.55

Finding the Fourth Proportional to 19,643.07, 27,106.55 and 10,690.55

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Solution

The fourth proportional to 19,643.07, 27,106.55 and 10,690.55 is: 14,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.07 : 27,106.55 = 10,690.55 : x
  2. Step 2: Convert to fraction form
    19,643.07/27,106.55 = 10,690.55/x
  3. Step 3: Cross multiply
    19,643.07x = 27,106.55 × 10,690.55
  4. Step 4: Simplify right side
    19,643.07x = 289,783,880.86
  5. Step 5: Solve for x
    x = 289,783,880.86/19,643.07
  6. Step 6: Final answer
    x = 14,752.47

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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.