Home / 15,152.07-20,909.43-8,437.44

Finding the Fourth Proportional to 15,152.07, 20,909.43 and 8,437.44

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Solution

The fourth proportional to 15,152.07, 20,909.43 and 8,437.44 is: 11,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.07 : 20,909.43 = 8,437.44 : x
  2. Step 2: Convert to fraction form
    15,152.07/20,909.43 = 8,437.44/x
  3. Step 3: Cross multiply
    15,152.07x = 20,909.43 × 8,437.44
  4. Step 4: Simplify right side
    15,152.07x = 176,422,061.06
  5. Step 5: Solve for x
    x = 176,422,061.06/15,152.07
  6. Step 6: Final answer
    x = 11,643.43

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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.