Home / 14,156.40-21,226.80-6,762.72

Finding the Fourth Proportional to 14,156.40, 21,226.80 and 6,762.72

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Solution

The fourth proportional to 14,156.40, 21,226.80 and 6,762.72 is: 10,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.40 : 21,226.80 = 6,762.72 : x
  2. Step 2: Convert to fraction form
    14,156.40/21,226.80 = 6,762.72/x
  3. Step 3: Cross multiply
    14,156.40x = 21,226.80 × 6,762.72
  4. Step 4: Simplify right side
    14,156.40x = 143,550,904.90
  5. Step 5: Solve for x
    x = 143,550,904.90/14,156.40
  6. Step 6: Final answer
    x = 10,140.35

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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.