Home / 19,140.33-26,415.27-10,643.07

Finding the Fourth Proportional to 19,140.33, 26,415.27 and 10,643.07

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Solution

The fourth proportional to 19,140.33, 26,415.27 and 10,643.07 is: 14,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.33 : 26,415.27 = 10,643.07 : x
  2. Step 2: Convert to fraction form
    19,140.33/26,415.27 = 10,643.07/x
  3. Step 3: Cross multiply
    19,140.33x = 26,415.27 × 10,643.07
  4. Step 4: Simplify right side
    19,140.33x = 281,139,567.68
  5. Step 5: Solve for x
    x = 281,139,567.68/19,140.33
  6. Step 6: Final answer
    x = 14,688.33

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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.