Home / 13,798.32-20,685.72-5,476.40

Finding the Fourth Proportional to 13,798.32, 20,685.72 and 5,476.40

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Solution

The fourth proportional to 13,798.32, 20,685.72 and 5,476.40 is: 8,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.32 : 20,685.72 = 5,476.40 : x
  2. Step 2: Convert to fraction form
    13,798.32/20,685.72 = 5,476.40/x
  3. Step 3: Cross multiply
    13,798.32x = 20,685.72 × 5,476.40
  4. Step 4: Simplify right side
    13,798.32x = 113,283,277.01
  5. Step 5: Solve for x
    x = 113,283,277.01/13,798.32
  6. Step 6: Final answer
    x = 8,209.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.