Home / 14,772.65-20,393.78-11,407.91

Finding the Fourth Proportional to 14,772.65, 20,393.78 and 11,407.91

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Solution

The fourth proportional to 14,772.65, 20,393.78 and 11,407.91 is: 15,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.65 : 20,393.78 = 11,407.91 : x
  2. Step 2: Convert to fraction form
    14,772.65/20,393.78 = 11,407.91/x
  3. Step 3: Cross multiply
    14,772.65x = 20,393.78 × 11,407.91
  4. Step 4: Simplify right side
    14,772.65x = 232,650,247.79
  5. Step 5: Solve for x
    x = 232,650,247.79/14,772.65
  6. Step 6: Final answer
    x = 15,748.72

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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.