Home / 10,860.40-14,987.40-6,145.60

Finding the Fourth Proportional to 10,860.40, 14,987.40 and 6,145.60

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Solution

The fourth proportional to 10,860.40, 14,987.40 and 6,145.60 is: 8,480.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.40 : 14,987.40 = 6,145.60 : x
  2. Step 2: Convert to fraction form
    10,860.40/14,987.40 = 6,145.60/x
  3. Step 3: Cross multiply
    10,860.40x = 14,987.40 × 6,145.60
  4. Step 4: Simplify right side
    10,860.40x = 92,106,565.44
  5. Step 5: Solve for x
    x = 92,106,565.44/10,860.40
  6. Step 6: Final answer
    x = 8,480.96

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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.