Home / 14,490.60-21,750.30-7,103.40

Finding the Fourth Proportional to 14,490.60, 21,750.30 and 7,103.40

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Solution

The fourth proportional to 14,490.60, 21,750.30 and 7,103.40 is: 10,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.60 : 21,750.30 = 7,103.40 : x
  2. Step 2: Convert to fraction form
    14,490.60/21,750.30 = 7,103.40/x
  3. Step 3: Cross multiply
    14,490.60x = 21,750.30 × 7,103.40
  4. Step 4: Simplify right side
    14,490.60x = 154,501,081.02
  5. Step 5: Solve for x
    x = 154,501,081.02/14,490.60
  6. Step 6: Final answer
    x = 10,662.16

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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.