Home / 14,742.60-22,128.30-7,355.40

Finding the Fourth Proportional to 14,742.60, 22,128.30 and 7,355.40

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Solution

The fourth proportional to 14,742.60, 22,128.30 and 7,355.40 is: 11,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.60 : 22,128.30 = 7,355.40 : x
  2. Step 2: Convert to fraction form
    14,742.60/22,128.30 = 7,355.40/x
  3. Step 3: Cross multiply
    14,742.60x = 22,128.30 × 7,355.40
  4. Step 4: Simplify right side
    14,742.60x = 162,762,497.82
  5. Step 5: Solve for x
    x = 162,762,497.82/14,742.60
  6. Step 6: Final answer
    x = 11,040.28

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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.