Home / 7,881.18-10,891.70-6,462.67

Finding the Fourth Proportional to 7,881.18, 10,891.70 and 6,462.67

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Solution

The fourth proportional to 7,881.18, 10,891.70 and 6,462.67 is: 8,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.18 : 10,891.70 = 6,462.67 : x
  2. Step 2: Convert to fraction form
    7,881.18/10,891.70 = 6,462.67/x
  3. Step 3: Cross multiply
    7,881.18x = 10,891.70 × 6,462.67
  4. Step 4: Simplify right side
    7,881.18x = 70,389,462.84
  5. Step 5: Solve for x
    x = 70,389,462.84/7,881.18
  6. Step 6: Final answer
    x = 8,931.34

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Half scale
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Double scale
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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.