Home / 19,142.68-26,418.10-10,646.69

Finding the Fourth Proportional to 19,142.68, 26,418.10 and 10,646.69

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Solution

The fourth proportional to 19,142.68, 26,418.10 and 10,646.69 is: 14,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.68 : 26,418.10 = 10,646.69 : x
  2. Step 2: Convert to fraction form
    19,142.68/26,418.10 = 10,646.69/x
  3. Step 3: Cross multiply
    19,142.68x = 26,418.10 × 10,646.69
  4. Step 4: Simplify right side
    19,142.68x = 281,265,330.95
  5. Step 5: Solve for x
    x = 281,265,330.95/19,142.68
  6. Step 6: Final answer
    x = 14,693.10

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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.