Home / 12,436.54-17,159.64-10,428.07

Finding the Fourth Proportional to 12,436.54, 17,159.64 and 10,428.07

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Solution

The fourth proportional to 12,436.54, 17,159.64 and 10,428.07 is: 14,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.54 : 17,159.64 = 10,428.07 : x
  2. Step 2: Convert to fraction form
    12,436.54/17,159.64 = 10,428.07/x
  3. Step 3: Cross multiply
    12,436.54x = 17,159.64 × 10,428.07
  4. Step 4: Simplify right side
    12,436.54x = 178,941,969.99
  5. Step 5: Solve for x
    x = 178,941,969.99/12,436.54
  6. Step 6: Final answer
    x = 14,388.41

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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.