Home / 10,368.55-15,540.67-5,435.65

Finding the Fourth Proportional to 10,368.55, 15,540.67 and 5,435.65

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Solution

The fourth proportional to 10,368.55, 15,540.67 and 5,435.65 is: 8,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.55 : 15,540.67 = 5,435.65 : x
  2. Step 2: Convert to fraction form
    10,368.55/15,540.67 = 5,435.65/x
  3. Step 3: Cross multiply
    10,368.55x = 15,540.67 × 5,435.65
  4. Step 4: Simplify right side
    10,368.55x = 84,473,642.89
  5. Step 5: Solve for x
    x = 84,473,642.89/10,368.55
  6. Step 6: Final answer
    x = 8,147.10

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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.