Home / 11,378.27-15,700.47-6,341.90

Finding the Fourth Proportional to 11,378.27, 15,700.47 and 6,341.90

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Solution

The fourth proportional to 11,378.27, 15,700.47 and 6,341.90 is: 8,750.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.27 : 15,700.47 = 6,341.90 : x
  2. Step 2: Convert to fraction form
    11,378.27/15,700.47 = 6,341.90/x
  3. Step 3: Cross multiply
    11,378.27x = 15,700.47 × 6,341.90
  4. Step 4: Simplify right side
    11,378.27x = 99,570,708.41
  5. Step 5: Solve for x
    x = 99,570,708.41/11,378.27
  6. Step 6: Final answer
    x = 8,750.95

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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.