Home / 19,140.32-26,412.82-10,642.43

Finding the Fourth Proportional to 19,140.32, 26,412.82 and 10,642.43

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Solution

The fourth proportional to 19,140.32, 26,412.82 and 10,642.43 is: 14,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.32 : 26,412.82 = 10,642.43 : x
  2. Step 2: Convert to fraction form
    19,140.32/26,412.82 = 10,642.43/x
  3. Step 3: Cross multiply
    19,140.32x = 26,412.82 × 10,642.43
  4. Step 4: Simplify right side
    19,140.32x = 281,096,587.95
  5. Step 5: Solve for x
    x = 281,096,587.95/19,140.32
  6. Step 6: Final answer
    x = 14,686.10

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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.