Home / 14,390.87-21,572.45-7,374.20

Finding the Fourth Proportional to 14,390.87, 21,572.45 and 7,374.20

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Solution

The fourth proportional to 14,390.87, 21,572.45 and 7,374.20 is: 11,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.87 : 21,572.45 = 7,374.20 : x
  2. Step 2: Convert to fraction form
    14,390.87/21,572.45 = 7,374.20/x
  3. Step 3: Cross multiply
    14,390.87x = 21,572.45 × 7,374.20
  4. Step 4: Simplify right side
    14,390.87x = 159,079,416.06
  5. Step 5: Solve for x
    x = 159,079,416.06/14,390.87
  6. Step 6: Final answer
    x = 11,054.19

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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.