Home / 10,521.63-14,520.20-5,806.35

Finding the Fourth Proportional to 10,521.63, 14,520.20 and 5,806.35

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Solution

The fourth proportional to 10,521.63, 14,520.20 and 5,806.35 is: 8,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.63 : 14,520.20 = 5,806.35 : x
  2. Step 2: Convert to fraction form
    10,521.63/14,520.20 = 5,806.35/x
  3. Step 3: Cross multiply
    10,521.63x = 14,520.20 × 5,806.35
  4. Step 4: Simplify right side
    10,521.63x = 84,309,334.24
  5. Step 5: Solve for x
    x = 84,309,334.24/10,521.63
  6. Step 6: Final answer
    x = 8,012.95

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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.