Home / 15,081.16-20,816.26-10,605.96

Finding the Fourth Proportional to 15,081.16, 20,816.26 and 10,605.96

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Solution

The fourth proportional to 15,081.16, 20,816.26 and 10,605.96 is: 14,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.16 : 20,816.26 = 10,605.96 : x
  2. Step 2: Convert to fraction form
    15,081.16/20,816.26 = 10,605.96/x
  3. Step 3: Cross multiply
    15,081.16x = 20,816.26 × 10,605.96
  4. Step 4: Simplify right side
    15,081.16x = 220,776,420.91
  5. Step 5: Solve for x
    x = 220,776,420.91/15,081.16
  6. Step 6: Final answer
    x = 14,639.22

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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.