Home / 15,963.75-22,030.38-8,890.02

Finding the Fourth Proportional to 15,963.75, 22,030.38 and 8,890.02

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Solution

The fourth proportional to 15,963.75, 22,030.38 and 8,890.02 is: 12,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.75 : 22,030.38 = 8,890.02 : x
  2. Step 2: Convert to fraction form
    15,963.75/22,030.38 = 8,890.02/x
  3. Step 3: Cross multiply
    15,963.75x = 22,030.38 × 8,890.02
  4. Step 4: Simplify right side
    15,963.75x = 195,850,518.81
  5. Step 5: Solve for x
    x = 195,850,518.81/15,963.75
  6. Step 6: Final answer
    x = 12,268.45

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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.