Home / 15,582.46-21,503.03-8,868.68

Finding the Fourth Proportional to 15,582.46, 21,503.03 and 8,868.68

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Solution

The fourth proportional to 15,582.46, 21,503.03 and 8,868.68 is: 12,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.46 : 21,503.03 = 8,868.68 : x
  2. Step 2: Convert to fraction form
    15,582.46/21,503.03 = 8,868.68/x
  3. Step 3: Cross multiply
    15,582.46x = 21,503.03 × 8,868.68
  4. Step 4: Simplify right side
    15,582.46x = 190,703,492.10
  5. Step 5: Solve for x
    x = 190,703,492.10/15,582.46
  6. Step 6: Final answer
    x = 12,238.34

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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.