Home / 7,415.60-10,232.64-4,430.75

Finding the Fourth Proportional to 7,415.60, 10,232.64 and 4,430.75

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Solution

The fourth proportional to 7,415.60, 10,232.64 and 4,430.75 is: 6,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.60 : 10,232.64 = 4,430.75 : x
  2. Step 2: Convert to fraction form
    7,415.60/10,232.64 = 4,430.75/x
  3. Step 3: Cross multiply
    7,415.60x = 10,232.64 × 4,430.75
  4. Step 4: Simplify right side
    7,415.60x = 45,338,218.52
  5. Step 5: Solve for x
    x = 45,338,218.52/7,415.60
  6. Step 6: Final answer
    x = 6,113.90

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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.