Home / 10,154.34-15,220.58-9,688.77

Finding the Fourth Proportional to 10,154.34, 15,220.58 and 9,688.77

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Solution

The fourth proportional to 10,154.34, 15,220.58 and 9,688.77 is: 14,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.34 : 15,220.58 = 9,688.77 : x
  2. Step 2: Convert to fraction form
    10,154.34/15,220.58 = 9,688.77/x
  3. Step 3: Cross multiply
    10,154.34x = 15,220.58 × 9,688.77
  4. Step 4: Simplify right side
    10,154.34x = 147,468,650.44
  5. Step 5: Solve for x
    x = 147,468,650.44/10,154.34
  6. Step 6: Final answer
    x = 14,522.72

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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.