Home / 13,451.84-18,562.24-7,788.16

Finding the Fourth Proportional to 13,451.84, 18,562.24 and 7,788.16

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Solution

The fourth proportional to 13,451.84, 18,562.24 and 7,788.16 is: 10,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.84 : 18,562.24 = 7,788.16 : x
  2. Step 2: Convert to fraction form
    13,451.84/18,562.24 = 7,788.16/x
  3. Step 3: Cross multiply
    13,451.84x = 18,562.24 × 7,788.16
  4. Step 4: Simplify right side
    13,451.84x = 144,565,695.08
  5. Step 5: Solve for x
    x = 144,565,695.08/13,451.84
  6. Step 6: Final answer
    x = 10,746.91

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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.