Home / 19,427.46-26,818.02-13,143.48

Finding the Fourth Proportional to 19,427.46, 26,818.02 and 13,143.48

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Solution

The fourth proportional to 19,427.46, 26,818.02 and 13,143.48 is: 18,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.46 : 26,818.02 = 13,143.48 : x
  2. Step 2: Convert to fraction form
    19,427.46/26,818.02 = 13,143.48/x
  3. Step 3: Cross multiply
    19,427.46x = 26,818.02 × 13,143.48
  4. Step 4: Simplify right side
    19,427.46x = 352,482,109.51
  5. Step 5: Solve for x
    x = 352,482,109.51/19,427.46
  6. Step 6: Final answer
    x = 18,143.50

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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.