Home / 14,970.15-20,658.78-8,256.20

Finding the Fourth Proportional to 14,970.15, 20,658.78 and 8,256.20

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Solution

The fourth proportional to 14,970.15, 20,658.78 and 8,256.20 is: 11,393.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.15 : 20,658.78 = 8,256.20 : x
  2. Step 2: Convert to fraction form
    14,970.15/20,658.78 = 8,256.20/x
  3. Step 3: Cross multiply
    14,970.15x = 20,658.78 × 8,256.20
  4. Step 4: Simplify right side
    14,970.15x = 170,562,916.14
  5. Step 5: Solve for x
    x = 170,562,916.14/14,970.15
  6. Step 6: Final answer
    x = 11,393.53

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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.