Home / 25,411.64-38,114.72-8,769.78

Finding the Fourth Proportional to 25,411.64, 38,114.72 and 8,769.78

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Solution

The fourth proportional to 25,411.64, 38,114.72 and 8,769.78 is: 13,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,411.64 : 38,114.72 = 8,769.78 : x
  2. Step 2: Convert to fraction form
    25,411.64/38,114.72 = 8,769.78/x
  3. Step 3: Cross multiply
    25,411.64x = 38,114.72 × 8,769.78
  4. Step 4: Simplify right side
    25,411.64x = 334,257,709.16
  5. Step 5: Solve for x
    x = 334,257,709.16/25,411.64
  6. Step 6: Final answer
    x = 13,153.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.