Home / 9,987.30-14,973.66-4,135.86

Finding the Fourth Proportional to 9,987.30, 14,973.66 and 4,135.86

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Solution

The fourth proportional to 9,987.30, 14,973.66 and 4,135.86 is: 6,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.30 : 14,973.66 = 4,135.86 : x
  2. Step 2: Convert to fraction form
    9,987.30/14,973.66 = 4,135.86/x
  3. Step 3: Cross multiply
    9,987.30x = 14,973.66 × 4,135.86
  4. Step 4: Simplify right side
    9,987.30x = 61,928,961.45
  5. Step 5: Solve for x
    x = 61,928,961.45/9,987.30
  6. Step 6: Final answer
    x = 6,200.77

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1.5x scale

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.