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Finding the Fourth Proportional to 15,920.39, 23,880.17 and 7,606.28

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Solution

The fourth proportional to 15,920.39, 23,880.17 and 7,606.28 is: 11,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.39 : 23,880.17 = 7,606.28 : x
  2. Step 2: Convert to fraction form
    15,920.39/23,880.17 = 7,606.28/x
  3. Step 3: Cross multiply
    15,920.39x = 23,880.17 × 7,606.28
  4. Step 4: Simplify right side
    15,920.39x = 181,639,159.08
  5. Step 5: Solve for x
    x = 181,639,159.08/15,920.39
  6. Step 6: Final answer
    x = 11,409.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.