Home / 8,430.48-11,631.80-5,445.23

Finding the Fourth Proportional to 8,430.48, 11,631.80 and 5,445.23

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Solution

The fourth proportional to 8,430.48, 11,631.80 and 5,445.23 is: 7,512.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.48 : 11,631.80 = 5,445.23 : x
  2. Step 2: Convert to fraction form
    8,430.48/11,631.80 = 5,445.23/x
  3. Step 3: Cross multiply
    8,430.48x = 11,631.80 × 5,445.23
  4. Step 4: Simplify right side
    8,430.48x = 63,337,781.77
  5. Step 5: Solve for x
    x = 63,337,781.77/8,430.48
  6. Step 6: Final answer
    x = 7,512.95

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Find fourth proportional to 8,431.48, 11,633.18 and 5,446.23
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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.