Home / 18,386.76-25,374.48-10,429.92

Finding the Fourth Proportional to 18,386.76, 25,374.48 and 10,429.92

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Solution

The fourth proportional to 18,386.76, 25,374.48 and 10,429.92 is: 14,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.76 : 25,374.48 = 10,429.92 : x
  2. Step 2: Convert to fraction form
    18,386.76/25,374.48 = 10,429.92/x
  3. Step 3: Cross multiply
    18,386.76x = 25,374.48 × 10,429.92
  4. Step 4: Simplify right side
    18,386.76x = 264,653,796.44
  5. Step 5: Solve for x
    x = 264,653,796.44/18,386.76
  6. Step 6: Final answer
    x = 14,393.72

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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.