Home / 15,266.56-21,063.92-8,977.76

Finding the Fourth Proportional to 15,266.56, 21,063.92 and 8,977.76

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Solution

The fourth proportional to 15,266.56, 21,063.92 and 8,977.76 is: 12,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.56 : 21,063.92 = 8,977.76 : x
  2. Step 2: Convert to fraction form
    15,266.56/21,063.92 = 8,977.76/x
  3. Step 3: Cross multiply
    15,266.56x = 21,063.92 × 8,977.76
  4. Step 4: Simplify right side
    15,266.56x = 189,106,818.42
  5. Step 5: Solve for x
    x = 189,106,818.42/15,266.56
  6. Step 6: Final answer
    x = 12,387.00

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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.