Home / 14,919.60-22,352.40-7,111.20

Finding the Fourth Proportional to 14,919.60, 22,352.40 and 7,111.20

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Solution

The fourth proportional to 14,919.60, 22,352.40 and 7,111.20 is: 10,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.60 : 22,352.40 = 7,111.20 : x
  2. Step 2: Convert to fraction form
    14,919.60/22,352.40 = 7,111.20/x
  3. Step 3: Cross multiply
    14,919.60x = 22,352.40 × 7,111.20
  4. Step 4: Simplify right side
    14,919.60x = 158,952,386.88
  5. Step 5: Solve for x
    x = 158,952,386.88/14,919.60
  6. Step 6: Final answer
    x = 10,653.93

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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.