Home / 14,646.28-21,972.90-4,785.55

Finding the Fourth Proportional to 14,646.28, 21,972.90 and 4,785.55

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Solution

The fourth proportional to 14,646.28, 21,972.90 and 4,785.55 is: 7,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.28 : 21,972.90 = 4,785.55 : x
  2. Step 2: Convert to fraction form
    14,646.28/21,972.90 = 4,785.55/x
  3. Step 3: Cross multiply
    14,646.28x = 21,972.90 × 4,785.55
  4. Step 4: Simplify right side
    14,646.28x = 105,152,411.60
  5. Step 5: Solve for x
    x = 105,152,411.60/14,646.28
  6. Step 6: Final answer
    x = 7,179.46

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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.