Home / 15,210.46-20,988.35-8,495.23

Finding the Fourth Proportional to 15,210.46, 20,988.35 and 8,495.23

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Solution

The fourth proportional to 15,210.46, 20,988.35 and 8,495.23 is: 11,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.46 : 20,988.35 = 8,495.23 : x
  2. Step 2: Convert to fraction form
    15,210.46/20,988.35 = 8,495.23/x
  3. Step 3: Cross multiply
    15,210.46x = 20,988.35 × 8,495.23
  4. Step 4: Simplify right side
    15,210.46x = 178,300,860.57
  5. Step 5: Solve for x
    x = 178,300,860.57/15,210.46
  6. Step 6: Final answer
    x = 11,722.25

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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.