Home / 8,784.48-12,124.26-5,430.54

Finding the Fourth Proportional to 8,784.48, 12,124.26 and 5,430.54

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Solution

The fourth proportional to 8,784.48, 12,124.26 and 5,430.54 is: 7,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.48 : 12,124.26 = 5,430.54 : x
  2. Step 2: Convert to fraction form
    8,784.48/12,124.26 = 5,430.54/x
  3. Step 3: Cross multiply
    8,784.48x = 12,124.26 × 5,430.54
  4. Step 4: Simplify right side
    8,784.48x = 65,841,278.90
  5. Step 5: Solve for x
    x = 65,841,278.90/8,784.48
  6. Step 6: Final answer
    x = 7,495.18

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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.