Home / 19,905.77-27,470.06-10,953.05

Finding the Fourth Proportional to 19,905.77, 27,470.06 and 10,953.05

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Solution

The fourth proportional to 19,905.77, 27,470.06 and 10,953.05 is: 15,115.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.77 : 27,470.06 = 10,953.05 : x
  2. Step 2: Convert to fraction form
    19,905.77/27,470.06 = 10,953.05/x
  3. Step 3: Cross multiply
    19,905.77x = 27,470.06 × 10,953.05
  4. Step 4: Simplify right side
    19,905.77x = 300,880,748.57
  5. Step 5: Solve for x
    x = 300,880,748.57/19,905.77
  6. Step 6: Final answer
    x = 15,115.26

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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.