Home / 13,316.49-19,960.55-10,019.39

Finding the Fourth Proportional to 13,316.49, 19,960.55 and 10,019.39

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Solution

The fourth proportional to 13,316.49, 19,960.55 and 10,019.39 is: 15,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.49 : 19,960.55 = 10,019.39 : x
  2. Step 2: Convert to fraction form
    13,316.49/19,960.55 = 10,019.39/x
  3. Step 3: Cross multiply
    13,316.49x = 19,960.55 × 10,019.39
  4. Step 4: Simplify right side
    13,316.49x = 199,992,385.16
  5. Step 5: Solve for x
    x = 199,992,385.16/13,316.49
  6. Step 6: Final answer
    x = 15,018.40

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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.