Home / 15,024.80-20,734.13-8,977.81

Finding the Fourth Proportional to 15,024.80, 20,734.13 and 8,977.81

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Solution

The fourth proportional to 15,024.80, 20,734.13 and 8,977.81 is: 12,389.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.80 : 20,734.13 = 8,977.81 : x
  2. Step 2: Convert to fraction form
    15,024.80/20,734.13 = 8,977.81/x
  3. Step 3: Cross multiply
    15,024.80x = 20,734.13 × 8,977.81
  4. Step 4: Simplify right side
    15,024.80x = 186,146,965.75
  5. Step 5: Solve for x
    x = 186,146,965.75/15,024.80
  6. Step 6: Final answer
    x = 12,389.31

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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.