Home / 10,837.60-16,256.40-7,727.20

Finding the Fourth Proportional to 10,837.60, 16,256.40 and 7,727.20

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Solution

The fourth proportional to 10,837.60, 16,256.40 and 7,727.20 is: 11,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,837.60 : 16,256.40 = 7,727.20 : x
  2. Step 2: Convert to fraction form
    10,837.60/16,256.40 = 7,727.20/x
  3. Step 3: Cross multiply
    10,837.60x = 16,256.40 × 7,727.20
  4. Step 4: Simplify right side
    10,837.60x = 125,616,454.08
  5. Step 5: Solve for x
    x = 125,616,454.08/10,837.60
  6. Step 6: Final answer
    x = 11,590.80

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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.