Home / 11,708.06-16,157.10-6,931.28

Finding the Fourth Proportional to 11,708.06, 16,157.10 and 6,931.28

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Solution

The fourth proportional to 11,708.06, 16,157.10 and 6,931.28 is: 9,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.06 : 16,157.10 = 6,931.28 : x
  2. Step 2: Convert to fraction form
    11,708.06/16,157.10 = 6,931.28/x
  3. Step 3: Cross multiply
    11,708.06x = 16,157.10 × 6,931.28
  4. Step 4: Simplify right side
    11,708.06x = 111,989,384.09
  5. Step 5: Solve for x
    x = 111,989,384.09/11,708.06
  6. Step 6: Final answer
    x = 9,565.15

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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.