Home / 10,316.10-15,506.55-10,121.70

Finding the Fourth Proportional to 10,316.10, 15,506.55 and 10,121.70

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Solution

The fourth proportional to 10,316.10, 15,506.55 and 10,121.70 is: 15,214.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.10 : 15,506.55 = 10,121.70 : x
  2. Step 2: Convert to fraction form
    10,316.10/15,506.55 = 10,121.70/x
  3. Step 3: Cross multiply
    10,316.10x = 15,506.55 × 10,121.70
  4. Step 4: Simplify right side
    10,316.10x = 156,952,647.14
  5. Step 5: Solve for x
    x = 156,952,647.14/10,316.10
  6. Step 6: Final answer
    x = 15,214.34

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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.