Home / 13,298.92-19,943.70-7,293.78

Finding the Fourth Proportional to 13,298.92, 19,943.70 and 7,293.78

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Solution

The fourth proportional to 13,298.92, 19,943.70 and 7,293.78 is: 10,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.92 : 19,943.70 = 7,293.78 : x
  2. Step 2: Convert to fraction form
    13,298.92/19,943.70 = 7,293.78/x
  3. Step 3: Cross multiply
    13,298.92x = 19,943.70 × 7,293.78
  4. Step 4: Simplify right side
    13,298.92x = 145,464,960.19
  5. Step 5: Solve for x
    x = 145,464,960.19/13,298.92
  6. Step 6: Final answer
    x = 10,938.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.