Home / 9,994.87-13,792.70-5,457.40

Finding the Fourth Proportional to 9,994.87, 13,792.70 and 5,457.40

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Solution

The fourth proportional to 9,994.87, 13,792.70 and 5,457.40 is: 7,531.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.87 : 13,792.70 = 5,457.40 : x
  2. Step 2: Convert to fraction form
    9,994.87/13,792.70 = 5,457.40/x
  3. Step 3: Cross multiply
    9,994.87x = 13,792.70 × 5,457.40
  4. Step 4: Simplify right side
    9,994.87x = 75,272,212.02
  5. Step 5: Solve for x
    x = 75,272,212.02/9,994.87
  6. Step 6: Final answer
    x = 7,531.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.