Home / 13,319.40-19,943.90-10,674.60

Finding the Fourth Proportional to 13,319.40, 19,943.90 and 10,674.60

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Solution

The fourth proportional to 13,319.40, 19,943.90 and 10,674.60 is: 15,983.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.40 : 19,943.90 = 10,674.60 : x
  2. Step 2: Convert to fraction form
    13,319.40/19,943.90 = 10,674.60/x
  3. Step 3: Cross multiply
    13,319.40x = 19,943.90 × 10,674.60
  4. Step 4: Simplify right side
    13,319.40x = 212,893,154.94
  5. Step 5: Solve for x
    x = 212,893,154.94/13,319.40
  6. Step 6: Final answer
    x = 15,983.69

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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.