Home / 15,811.74-23,710.95-6,445.35

Finding the Fourth Proportional to 15,811.74, 23,710.95 and 6,445.35

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Solution

The fourth proportional to 15,811.74, 23,710.95 and 6,445.35 is: 9,665.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.74 : 23,710.95 = 6,445.35 : x
  2. Step 2: Convert to fraction form
    15,811.74/23,710.95 = 6,445.35/x
  3. Step 3: Cross multiply
    15,811.74x = 23,710.95 × 6,445.35
  4. Step 4: Simplify right side
    15,811.74x = 152,825,371.58
  5. Step 5: Solve for x
    x = 152,825,371.58/15,811.74
  6. Step 6: Final answer
    x = 9,665.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.