Home / 13,511.48-18,646.74-7,544.34

Finding the Fourth Proportional to 13,511.48, 18,646.74 and 7,544.34

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Solution

The fourth proportional to 13,511.48, 18,646.74 and 7,544.34 is: 10,411.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.48 : 18,646.74 = 7,544.34 : x
  2. Step 2: Convert to fraction form
    13,511.48/18,646.74 = 7,544.34/x
  3. Step 3: Cross multiply
    13,511.48x = 18,646.74 × 7,544.34
  4. Step 4: Simplify right side
    13,511.48x = 140,677,346.45
  5. Step 5: Solve for x
    x = 140,677,346.45/13,511.48
  6. Step 6: Final answer
    x = 10,411.69

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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.