Home / 15,196.57-20,980.89-10,424.51

Finding the Fourth Proportional to 15,196.57, 20,980.89 and 10,424.51

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Solution

The fourth proportional to 15,196.57, 20,980.89 and 10,424.51 is: 14,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.57 : 20,980.89 = 10,424.51 : x
  2. Step 2: Convert to fraction form
    15,196.57/20,980.89 = 10,424.51/x
  3. Step 3: Cross multiply
    15,196.57x = 20,980.89 × 10,424.51
  4. Step 4: Simplify right side
    15,196.57x = 218,715,392.71
  5. Step 5: Solve for x
    x = 218,715,392.71/15,196.57
  6. Step 6: Final answer
    x = 14,392.42

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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.