Home / 11,117.76-15,343.95-6,339.45

Finding the Fourth Proportional to 11,117.76, 15,343.95 and 6,339.45

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Solution

The fourth proportional to 11,117.76, 15,343.95 and 6,339.45 is: 8,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.76 : 15,343.95 = 6,339.45 : x
  2. Step 2: Convert to fraction form
    11,117.76/15,343.95 = 6,339.45/x
  3. Step 3: Cross multiply
    11,117.76x = 15,343.95 × 6,339.45
  4. Step 4: Simplify right side
    11,117.76x = 97,272,203.83
  5. Step 5: Solve for x
    x = 97,272,203.83/11,117.76
  6. Step 6: Final answer
    x = 8,749.26

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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.