Home / 15,444.75-21,314.08-8,729.98

Finding the Fourth Proportional to 15,444.75, 21,314.08 and 8,729.98

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Solution

The fourth proportional to 15,444.75, 21,314.08 and 8,729.98 is: 12,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.75 : 21,314.08 = 8,729.98 : x
  2. Step 2: Convert to fraction form
    15,444.75/21,314.08 = 8,729.98/x
  3. Step 3: Cross multiply
    15,444.75x = 21,314.08 × 8,729.98
  4. Step 4: Simplify right side
    15,444.75x = 186,071,434.02
  5. Step 5: Solve for x
    x = 186,071,434.02/15,444.75
  6. Step 6: Final answer
    x = 12,047.55

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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.