Home / 13,648.08-18,833.34-7,678.59

Finding the Fourth Proportional to 13,648.08, 18,833.34 and 7,678.59

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Solution

The fourth proportional to 13,648.08, 18,833.34 and 7,678.59 is: 10,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.08 : 18,833.34 = 7,678.59 : x
  2. Step 2: Convert to fraction form
    13,648.08/18,833.34 = 7,678.59/x
  3. Step 3: Cross multiply
    13,648.08x = 18,833.34 × 7,678.59
  4. Step 4: Simplify right side
    13,648.08x = 144,613,496.19
  5. Step 5: Solve for x
    x = 144,613,496.19/13,648.08
  6. Step 6: Final answer
    x = 10,595.89

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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.