Home / 11,328.56-15,632.28-6,291.56

Finding the Fourth Proportional to 11,328.56, 15,632.28 and 6,291.56

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Solution

The fourth proportional to 11,328.56, 15,632.28 and 6,291.56 is: 8,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.56 : 15,632.28 = 6,291.56 : x
  2. Step 2: Convert to fraction form
    11,328.56/15,632.28 = 6,291.56/x
  3. Step 3: Cross multiply
    11,328.56x = 15,632.28 × 6,291.56
  4. Step 4: Simplify right side
    11,328.56x = 98,351,427.56
  5. Step 5: Solve for x
    x = 98,351,427.56/11,328.56
  6. Step 6: Final answer
    x = 8,681.72

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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.