Home / 10,807.60-14,916-6,330.28

Finding the Fourth Proportional to 10,807.60, 14,916 and 6,330.28

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Solution

The fourth proportional to 10,807.60, 14,916 and 6,330.28 is: 8,736.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.60 : 14,916 = 6,330.28 : x
  2. Step 2: Convert to fraction form
    10,807.60/14,916 = 6,330.28/x
  3. Step 3: Cross multiply
    10,807.60x = 14,916 × 6,330.28
  4. Step 4: Simplify right side
    10,807.60x = 94,422,456.48
  5. Step 5: Solve for x
    x = 94,422,456.48/10,807.60
  6. Step 6: Final answer
    x = 8,736.67

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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.