Home / 15,210.59-20,988.53-8,495.36

Finding the Fourth Proportional to 15,210.59, 20,988.53 and 8,495.36

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Solution

The fourth proportional to 15,210.59, 20,988.53 and 8,495.36 is: 11,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.59 : 20,988.53 = 8,495.36 : x
  2. Step 2: Convert to fraction form
    15,210.59/20,988.53 = 8,495.36/x
  3. Step 3: Cross multiply
    15,210.59x = 20,988.53 × 8,495.36
  4. Step 4: Simplify right side
    15,210.59x = 178,305,081.37
  5. Step 5: Solve for x
    x = 178,305,081.37/15,210.59
  6. Step 6: Final answer
    x = 11,722.43

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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.