Home / 15,253.29-21,050.87-8,538.80

Finding the Fourth Proportional to 15,253.29, 21,050.87 and 8,538.80

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Solution

The fourth proportional to 15,253.29, 21,050.87 and 8,538.80 is: 11,784.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.29 : 21,050.87 = 8,538.80 : x
  2. Step 2: Convert to fraction form
    15,253.29/21,050.87 = 8,538.80/x
  3. Step 3: Cross multiply
    15,253.29x = 21,050.87 × 8,538.80
  4. Step 4: Simplify right side
    15,253.29x = 179,749,020.81
  5. Step 5: Solve for x
    x = 179,749,020.81/15,253.29
  6. Step 6: Final answer
    x = 11,784.28

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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.