Home / 12,090.39-16,688.87-7,313.01

Finding the Fourth Proportional to 12,090.39, 16,688.87 and 7,313.01

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Solution

The fourth proportional to 12,090.39, 16,688.87 and 7,313.01 is: 10,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.39 : 16,688.87 = 7,313.01 : x
  2. Step 2: Convert to fraction form
    12,090.39/16,688.87 = 7,313.01/x
  3. Step 3: Cross multiply
    12,090.39x = 16,688.87 × 7,313.01
  4. Step 4: Simplify right side
    12,090.39x = 122,045,873.20
  5. Step 5: Solve for x
    x = 122,045,873.20/12,090.39
  6. Step 6: Final answer
    x = 10,094.45

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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.