Home / 19,140.55-26,415.42-10,643.35

Finding the Fourth Proportional to 19,140.55, 26,415.42 and 10,643.35

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Solution

The fourth proportional to 19,140.55, 26,415.42 and 10,643.35 is: 14,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.55 : 26,415.42 = 10,643.35 : x
  2. Step 2: Convert to fraction form
    19,140.55/26,415.42 = 10,643.35/x
  3. Step 3: Cross multiply
    19,140.55x = 26,415.42 × 10,643.35
  4. Step 4: Simplify right side
    19,140.55x = 281,148,504.03
  5. Step 5: Solve for x
    x = 281,148,504.03/19,140.55
  6. Step 6: Final answer
    x = 14,688.63

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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.