Home / 13,090.84-18,065.36-7,423.76

Finding the Fourth Proportional to 13,090.84, 18,065.36 and 7,423.76

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Solution

The fourth proportional to 13,090.84, 18,065.36 and 7,423.76 is: 10,244.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.84 : 18,065.36 = 7,423.76 : x
  2. Step 2: Convert to fraction form
    13,090.84/18,065.36 = 7,423.76/x
  3. Step 3: Cross multiply
    13,090.84x = 18,065.36 × 7,423.76
  4. Step 4: Simplify right side
    13,090.84x = 134,112,896.95
  5. Step 5: Solve for x
    x = 134,112,896.95/13,090.84
  6. Step 6: Final answer
    x = 10,244.79

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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.