Home / 8,509.31-11,743.85-5,152.40

Finding the Fourth Proportional to 8,509.31, 11,743.85 and 5,152.40

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Solution

The fourth proportional to 8,509.31, 11,743.85 and 5,152.40 is: 7,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.31 : 11,743.85 = 5,152.40 : x
  2. Step 2: Convert to fraction form
    8,509.31/11,743.85 = 5,152.40/x
  3. Step 3: Cross multiply
    8,509.31x = 11,743.85 × 5,152.40
  4. Step 4: Simplify right side
    8,509.31x = 60,509,012.74
  5. Step 5: Solve for x
    x = 60,509,012.74/8,509.31
  6. Step 6: Final answer
    x = 7,110.92

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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.