Home / 13,533.96-18,678.61-7,566.86

Finding the Fourth Proportional to 13,533.96, 18,678.61 and 7,566.86

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Solution

The fourth proportional to 13,533.96, 18,678.61 and 7,566.86 is: 10,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.96 : 18,678.61 = 7,566.86 : x
  2. Step 2: Convert to fraction form
    13,533.96/18,678.61 = 7,566.86/x
  3. Step 3: Cross multiply
    13,533.96x = 18,678.61 × 7,566.86
  4. Step 4: Simplify right side
    13,533.96x = 141,338,426.86
  5. Step 5: Solve for x
    x = 141,338,426.86/13,533.96
  6. Step 6: Final answer
    x = 10,443.24

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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.