Home / 11,117.15-15,338.69-6,812.52

Finding the Fourth Proportional to 11,117.15, 15,338.69 and 6,812.52

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Solution

The fourth proportional to 11,117.15, 15,338.69 and 6,812.52 is: 9,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.15 : 15,338.69 = 6,812.52 : x
  2. Step 2: Convert to fraction form
    11,117.15/15,338.69 = 6,812.52/x
  3. Step 3: Cross multiply
    11,117.15x = 15,338.69 × 6,812.52
  4. Step 4: Simplify right side
    11,117.15x = 104,495,098.34
  5. Step 5: Solve for x
    x = 104,495,098.34/11,117.15
  6. Step 6: Final answer
    x = 9,399.45

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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.