Home / 19,140.39-26,415.92-10,643.36

Finding the Fourth Proportional to 19,140.39, 26,415.92 and 10,643.36

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Solution

The fourth proportional to 19,140.39, 26,415.92 and 10,643.36 is: 14,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.39 : 26,415.92 = 10,643.36 : x
  2. Step 2: Convert to fraction form
    19,140.39/26,415.92 = 10,643.36/x
  3. Step 3: Cross multiply
    19,140.39x = 26,415.92 × 10,643.36
  4. Step 4: Simplify right side
    19,140.39x = 281,154,040.82
  5. Step 5: Solve for x
    x = 281,154,040.82/19,140.39
  6. Step 6: Final answer
    x = 14,689.04

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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.