Home / 11,430.99-15,774.63-6,395.13

Finding the Fourth Proportional to 11,430.99, 15,774.63 and 6,395.13

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Solution

The fourth proportional to 11,430.99, 15,774.63 and 6,395.13 is: 8,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.99 : 15,774.63 = 6,395.13 : x
  2. Step 2: Convert to fraction form
    11,430.99/15,774.63 = 6,395.13/x
  3. Step 3: Cross multiply
    11,430.99x = 15,774.63 × 6,395.13
  4. Step 4: Simplify right side
    11,430.99x = 100,880,809.55
  5. Step 5: Solve for x
    x = 100,880,809.55/11,430.99
  6. Step 6: Final answer
    x = 8,825.20

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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.