Home / 13,905.36-20,862.72-4,671.36

Finding the Fourth Proportional to 13,905.36, 20,862.72 and 4,671.36

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Solution

The fourth proportional to 13,905.36, 20,862.72 and 4,671.36 is: 7,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.36 : 20,862.72 = 4,671.36 : x
  2. Step 2: Convert to fraction form
    13,905.36/20,862.72 = 4,671.36/x
  3. Step 3: Cross multiply
    13,905.36x = 20,862.72 × 4,671.36
  4. Step 4: Simplify right side
    13,905.36x = 97,457,275.70
  5. Step 5: Solve for x
    x = 97,457,275.70/13,905.36
  6. Step 6: Final answer
    x = 7,008.61

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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.