Home / 14,263.70-21,400.41-7,690.52

Finding the Fourth Proportional to 14,263.70, 21,400.41 and 7,690.52

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Solution

The fourth proportional to 14,263.70, 21,400.41 and 7,690.52 is: 11,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.70 : 21,400.41 = 7,690.52 : x
  2. Step 2: Convert to fraction form
    14,263.70/21,400.41 = 7,690.52/x
  3. Step 3: Cross multiply
    14,263.70x = 21,400.41 × 7,690.52
  4. Step 4: Simplify right side
    14,263.70x = 164,580,281.11
  5. Step 5: Solve for x
    x = 164,580,281.11/14,263.70
  6. Step 6: Final answer
    x = 11,538.40

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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.