Home / 7,420.02-10,259.32-6,485.84

Finding the Fourth Proportional to 7,420.02, 10,259.32 and 6,485.84

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Solution

The fourth proportional to 7,420.02, 10,259.32 and 6,485.84 is: 8,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.02 : 10,259.32 = 6,485.84 : x
  2. Step 2: Convert to fraction form
    7,420.02/10,259.32 = 6,485.84/x
  3. Step 3: Cross multiply
    7,420.02x = 10,259.32 × 6,485.84
  4. Step 4: Simplify right side
    7,420.02x = 66,540,308.03
  5. Step 5: Solve for x
    x = 66,540,308.03/7,420.02
  6. Step 6: Final answer
    x = 8,967.67

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Half scale
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Double scale
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Similar ratio
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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.