Home / 15,657.14-21,474.56-14,809.88

Finding the Fourth Proportional to 15,657.14, 21,474.56 and 14,809.88

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Solution

The fourth proportional to 15,657.14, 21,474.56 and 14,809.88 is: 20,312.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.14 : 21,474.56 = 14,809.88 : x
  2. Step 2: Convert to fraction form
    15,657.14/21,474.56 = 14,809.88/x
  3. Step 3: Cross multiply
    15,657.14x = 21,474.56 × 14,809.88
  4. Step 4: Simplify right side
    15,657.14x = 318,035,656.65
  5. Step 5: Solve for x
    x = 318,035,656.65/15,657.14
  6. Step 6: Final answer
    x = 20,312.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.