Home / 14,102.60-21,145.80-4,240.40

Finding the Fourth Proportional to 14,102.60, 21,145.80 and 4,240.40

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Solution

The fourth proportional to 14,102.60, 21,145.80 and 4,240.40 is: 6,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.60 : 21,145.80 = 4,240.40 : x
  2. Step 2: Convert to fraction form
    14,102.60/21,145.80 = 4,240.40/x
  3. Step 3: Cross multiply
    14,102.60x = 21,145.80 × 4,240.40
  4. Step 4: Simplify right side
    14,102.60x = 89,666,650.32
  5. Step 5: Solve for x
    x = 89,666,650.32/14,102.60
  6. Step 6: Final answer
    x = 6,358.16

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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.