Home / 10,520.01-15,782.98-3,124.77

Finding the Fourth Proportional to 10,520.01, 15,782.98 and 3,124.77

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Solution

The fourth proportional to 10,520.01, 15,782.98 and 3,124.77 is: 4,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.01 : 15,782.98 = 3,124.77 : x
  2. Step 2: Convert to fraction form
    10,520.01/15,782.98 = 3,124.77/x
  3. Step 3: Cross multiply
    10,520.01x = 15,782.98 × 3,124.77
  4. Step 4: Simplify right side
    10,520.01x = 49,318,182.41
  5. Step 5: Solve for x
    x = 49,318,182.41/10,520.01
  6. Step 6: Final answer
    x = 4,688.04

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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.