Home / 7,939.34-10,931.36-6,741.81

Finding the Fourth Proportional to 7,939.34, 10,931.36 and 6,741.81

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Solution

The fourth proportional to 7,939.34, 10,931.36 and 6,741.81 is: 9,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.34 : 10,931.36 = 6,741.81 : x
  2. Step 2: Convert to fraction form
    7,939.34/10,931.36 = 6,741.81/x
  3. Step 3: Cross multiply
    7,939.34x = 10,931.36 × 6,741.81
  4. Step 4: Simplify right side
    7,939.34x = 73,697,087.71
  5. Step 5: Solve for x
    x = 73,697,087.71/7,939.34
  6. Step 6: Final answer
    x = 9,282.52

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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.