Home / 10,354.08-14,288.86-5,638.36

Finding the Fourth Proportional to 10,354.08, 14,288.86 and 5,638.36

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Solution

The fourth proportional to 10,354.08, 14,288.86 and 5,638.36 is: 7,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.08 : 14,288.86 = 5,638.36 : x
  2. Step 2: Convert to fraction form
    10,354.08/14,288.86 = 5,638.36/x
  3. Step 3: Cross multiply
    10,354.08x = 14,288.86 × 5,638.36
  4. Step 4: Simplify right side
    10,354.08x = 80,565,703.07
  5. Step 5: Solve for x
    x = 80,565,703.07/10,354.08
  6. Step 6: Final answer
    x = 7,781.06

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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.