Home / 10,633.52-14,678.34-7,988.60

Finding the Fourth Proportional to 10,633.52, 14,678.34 and 7,988.60

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Solution

The fourth proportional to 10,633.52, 14,678.34 and 7,988.60 is: 11,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,633.52 : 14,678.34 = 7,988.60 : x
  2. Step 2: Convert to fraction form
    10,633.52/14,678.34 = 7,988.60/x
  3. Step 3: Cross multiply
    10,633.52x = 14,678.34 × 7,988.60
  4. Step 4: Simplify right side
    10,633.52x = 117,259,386.92
  5. Step 5: Solve for x
    x = 117,259,386.92/10,633.52
  6. Step 6: Final answer
    x = 11,027.33

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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.