Home / 15,972.32-22,041.18-8,898.56

Finding the Fourth Proportional to 15,972.32, 22,041.18 and 8,898.56

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Solution

The fourth proportional to 15,972.32, 22,041.18 and 8,898.56 is: 12,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.32 : 22,041.18 = 8,898.56 : x
  2. Step 2: Convert to fraction form
    15,972.32/22,041.18 = 8,898.56/x
  3. Step 3: Cross multiply
    15,972.32x = 22,041.18 × 8,898.56
  4. Step 4: Simplify right side
    15,972.32x = 196,134,762.70
  5. Step 5: Solve for x
    x = 196,134,762.70/15,972.32
  6. Step 6: Final answer
    x = 12,279.67

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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.