Home / 15,253.66-21,050.05-8,539.30

Finding the Fourth Proportional to 15,253.66, 21,050.05 and 8,539.30

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Solution

The fourth proportional to 15,253.66, 21,050.05 and 8,539.30 is: 11,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253.66 : 21,050.05 = 8,539.30 : x
  2. Step 2: Convert to fraction form
    15,253.66/21,050.05 = 8,539.30/x
  3. Step 3: Cross multiply
    15,253.66x = 21,050.05 × 8,539.30
  4. Step 4: Simplify right side
    15,253.66x = 179,752,586.71
  5. Step 5: Solve for x
    x = 179,752,586.71/15,253.66
  6. Step 6: Final answer
    x = 11,784.23

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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.