Home / 11,708.81-16,158.18-6,403.63

Finding the Fourth Proportional to 11,708.81, 16,158.18 and 6,403.63

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Solution

The fourth proportional to 11,708.81, 16,158.18 and 6,403.63 is: 8,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.81 : 16,158.18 = 6,403.63 : x
  2. Step 2: Convert to fraction form
    11,708.81/16,158.18 = 6,403.63/x
  3. Step 3: Cross multiply
    11,708.81x = 16,158.18 × 6,403.63
  4. Step 4: Simplify right side
    11,708.81x = 103,470,925.40
  5. Step 5: Solve for x
    x = 103,470,925.40/11,708.81
  6. Step 6: Final answer
    x = 8,837.01

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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.