Home / 15,487.58-21,376.26-10,182.90

Finding the Fourth Proportional to 15,487.58, 21,376.26 and 10,182.90

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Solution

The fourth proportional to 15,487.58, 21,376.26 and 10,182.90 is: 14,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.58 : 21,376.26 = 10,182.90 : x
  2. Step 2: Convert to fraction form
    15,487.58/21,376.26 = 10,182.90/x
  3. Step 3: Cross multiply
    15,487.58x = 21,376.26 × 10,182.90
  4. Step 4: Simplify right side
    15,487.58x = 217,672,317.95
  5. Step 5: Solve for x
    x = 217,672,317.95/15,487.58
  6. Step 6: Final answer
    x = 14,054.64

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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.