Home / 10,558.57-14,566.68-6,781.21

Finding the Fourth Proportional to 10,558.57, 14,566.68 and 6,781.21

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Solution

The fourth proportional to 10,558.57, 14,566.68 and 6,781.21 is: 9,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.57 : 14,566.68 = 6,781.21 : x
  2. Step 2: Convert to fraction form
    10,558.57/14,566.68 = 6,781.21/x
  3. Step 3: Cross multiply
    10,558.57x = 14,566.68 × 6,781.21
  4. Step 4: Simplify right side
    10,558.57x = 98,779,660.59
  5. Step 5: Solve for x
    x = 98,779,660.59/10,558.57
  6. Step 6: Final answer
    x = 9,355.40

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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.