Home / 13,284.28-18,333.75-7,316.56

Finding the Fourth Proportional to 13,284.28, 18,333.75 and 7,316.56

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Solution

The fourth proportional to 13,284.28, 18,333.75 and 7,316.56 is: 10,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.28 : 18,333.75 = 7,316.56 : x
  2. Step 2: Convert to fraction form
    13,284.28/18,333.75 = 7,316.56/x
  3. Step 3: Cross multiply
    13,284.28x = 18,333.75 × 7,316.56
  4. Step 4: Simplify right side
    13,284.28x = 134,139,981.90
  5. Step 5: Solve for x
    x = 134,139,981.90/13,284.28
  6. Step 6: Final answer
    x = 10,097.65

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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.