Home / 8,543.48-11,782.60-5,558.20

Finding the Fourth Proportional to 8,543.48, 11,782.60 and 5,558.20

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Solution

The fourth proportional to 8,543.48, 11,782.60 and 5,558.20 is: 7,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.48 : 11,782.60 = 5,558.20 : x
  2. Step 2: Convert to fraction form
    8,543.48/11,782.60 = 5,558.20/x
  3. Step 3: Cross multiply
    8,543.48x = 11,782.60 × 5,558.20
  4. Step 4: Simplify right side
    8,543.48x = 65,490,047.32
  5. Step 5: Solve for x
    x = 65,490,047.32/8,543.48
  6. Step 6: Final answer
    x = 7,665.50

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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.