Home / 11,328.48-15,632.15-6,615.49

Finding the Fourth Proportional to 11,328.48, 15,632.15 and 6,615.49

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Solution

The fourth proportional to 11,328.48, 15,632.15 and 6,615.49 is: 9,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.48 : 15,632.15 = 6,615.49 : x
  2. Step 2: Convert to fraction form
    11,328.48/15,632.15 = 6,615.49/x
  3. Step 3: Cross multiply
    11,328.48x = 15,632.15 × 6,615.49
  4. Step 4: Simplify right side
    11,328.48x = 103,414,332.00
  5. Step 5: Solve for x
    x = 103,414,332.00/11,328.48
  6. Step 6: Final answer
    x = 9,128.70

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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.