Home / 12,476.60-18,722.10-4,686.20

Finding the Fourth Proportional to 12,476.60, 18,722.10 and 4,686.20

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Solution

The fourth proportional to 12,476.60, 18,722.10 and 4,686.20 is: 7,032.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.60 : 18,722.10 = 4,686.20 : x
  2. Step 2: Convert to fraction form
    12,476.60/18,722.10 = 4,686.20/x
  3. Step 3: Cross multiply
    12,476.60x = 18,722.10 × 4,686.20
  4. Step 4: Simplify right side
    12,476.60x = 87,735,505.02
  5. Step 5: Solve for x
    x = 87,735,505.02/12,476.60
  6. Step 6: Final answer
    x = 7,032.00

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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.