Home / 13,887.60-19,158.16-8,580.48

Finding the Fourth Proportional to 13,887.60, 19,158.16 and 8,580.48

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Solution

The fourth proportional to 13,887.60, 19,158.16 and 8,580.48 is: 11,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.60 : 19,158.16 = 8,580.48 : x
  2. Step 2: Convert to fraction form
    13,887.60/19,158.16 = 8,580.48/x
  3. Step 3: Cross multiply
    13,887.60x = 19,158.16 × 8,580.48
  4. Step 4: Simplify right side
    13,887.60x = 164,386,208.72
  5. Step 5: Solve for x
    x = 164,386,208.72/13,887.60
  6. Step 6: Final answer
    x = 11,836.91

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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.