Home / 10,055.60-13,876.20-5,579

Finding the Fourth Proportional to 10,055.60, 13,876.20 and 5,579

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Solution

The fourth proportional to 10,055.60, 13,876.20 and 5,579 is: 7,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.60 : 13,876.20 = 5,579 : x
  2. Step 2: Convert to fraction form
    10,055.60/13,876.20 = 5,579/x
  3. Step 3: Cross multiply
    10,055.60x = 13,876.20 × 5,579
  4. Step 4: Simplify right side
    10,055.60x = 77,415,319.80
  5. Step 5: Solve for x
    x = 77,415,319.80/10,055.60
  6. Step 6: Final answer
    x = 7,698.73

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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.