Home / 10,981.65-15,152.55-6,506.27

Finding the Fourth Proportional to 10,981.65, 15,152.55 and 6,506.27

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Solution

The fourth proportional to 10,981.65, 15,152.55 and 6,506.27 is: 8,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.65 : 15,152.55 = 6,506.27 : x
  2. Step 2: Convert to fraction form
    10,981.65/15,152.55 = 6,506.27/x
  3. Step 3: Cross multiply
    10,981.65x = 15,152.55 × 6,506.27
  4. Step 4: Simplify right side
    10,981.65x = 98,586,505.73
  5. Step 5: Solve for x
    x = 98,586,505.73/10,981.65
  6. Step 6: Final answer
    x = 8,977.39

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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.