Home / 6,135.47-8,478.43-5,015.98

Finding the Fourth Proportional to 6,135.47, 8,478.43 and 5,015.98

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Solution

The fourth proportional to 6,135.47, 8,478.43 and 5,015.98 is: 6,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.47 : 8,478.43 = 5,015.98 : x
  2. Step 2: Convert to fraction form
    6,135.47/8,478.43 = 5,015.98/x
  3. Step 3: Cross multiply
    6,135.47x = 8,478.43 × 5,015.98
  4. Step 4: Simplify right side
    6,135.47x = 42,527,601.58
  5. Step 5: Solve for x
    x = 42,527,601.58/6,135.47
  6. Step 6: Final answer
    x = 6,931.44

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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.