Home / 11,430.59-15,765.73-8,069.90

Finding the Fourth Proportional to 11,430.59, 15,765.73 and 8,069.90

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Solution

The fourth proportional to 11,430.59, 15,765.73 and 8,069.90 is: 11,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.59 : 15,765.73 = 8,069.90 : x
  2. Step 2: Convert to fraction form
    11,430.59/15,765.73 = 8,069.90/x
  3. Step 3: Cross multiply
    11,430.59x = 15,765.73 × 8,069.90
  4. Step 4: Simplify right side
    11,430.59x = 127,227,765.52
  5. Step 5: Solve for x
    x = 127,227,765.52/11,430.59
  6. Step 6: Final answer
    x = 11,130.47

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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.