Home / 18,424.17-25,425.37-10,870.51

Finding the Fourth Proportional to 18,424.17, 25,425.37 and 10,870.51

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Solution

The fourth proportional to 18,424.17, 25,425.37 and 10,870.51 is: 15,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.17 : 25,425.37 = 10,870.51 : x
  2. Step 2: Convert to fraction form
    18,424.17/25,425.37 = 10,870.51/x
  3. Step 3: Cross multiply
    18,424.17x = 25,425.37 × 10,870.51
  4. Step 4: Simplify right side
    18,424.17x = 276,386,738.84
  5. Step 5: Solve for x
    x = 276,386,738.84/18,424.17
  6. Step 6: Final answer
    x = 15,001.31

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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.