Home / 18,637.72-25,721.94-10,681

Finding the Fourth Proportional to 18,637.72, 25,721.94 and 10,681

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Solution

The fourth proportional to 18,637.72, 25,721.94 and 10,681 is: 14,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.72 : 25,721.94 = 10,681 : x
  2. Step 2: Convert to fraction form
    18,637.72/25,721.94 = 10,681/x
  3. Step 3: Cross multiply
    18,637.72x = 25,721.94 × 10,681
  4. Step 4: Simplify right side
    18,637.72x = 274,736,041.14
  5. Step 5: Solve for x
    x = 274,736,041.14/18,637.72
  6. Step 6: Final answer
    x = 14,740.86

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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.