Home / 13,253.07-18,288.36-7,587.86

Finding the Fourth Proportional to 13,253.07, 18,288.36 and 7,587.86

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Solution

The fourth proportional to 13,253.07, 18,288.36 and 7,587.86 is: 10,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.07 : 18,288.36 = 7,587.86 : x
  2. Step 2: Convert to fraction form
    13,253.07/18,288.36 = 7,587.86/x
  3. Step 3: Cross multiply
    13,253.07x = 18,288.36 × 7,587.86
  4. Step 4: Simplify right side
    13,253.07x = 138,769,505.40
  5. Step 5: Solve for x
    x = 138,769,505.40/13,253.07
  6. Step 6: Final answer
    x = 10,470.75

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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.