Home / 8,291.12-12,430.48-5,003.45

Finding the Fourth Proportional to 8,291.12, 12,430.48 and 5,003.45

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Solution

The fourth proportional to 8,291.12, 12,430.48 and 5,003.45 is: 7,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.12 : 12,430.48 = 5,003.45 : x
  2. Step 2: Convert to fraction form
    8,291.12/12,430.48 = 5,003.45/x
  3. Step 3: Cross multiply
    8,291.12x = 12,430.48 × 5,003.45
  4. Step 4: Simplify right side
    8,291.12x = 62,195,210.42
  5. Step 5: Solve for x
    x = 62,195,210.42/8,291.12
  6. Step 6: Final answer
    x = 7,501.42

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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.