Home / 10,613.70-15,919.40-4,374.47

Finding the Fourth Proportional to 10,613.70, 15,919.40 and 4,374.47

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Solution

The fourth proportional to 10,613.70, 15,919.40 and 4,374.47 is: 6,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.70 : 15,919.40 = 4,374.47 : x
  2. Step 2: Convert to fraction form
    10,613.70/15,919.40 = 4,374.47/x
  3. Step 3: Cross multiply
    10,613.70x = 15,919.40 × 4,374.47
  4. Step 4: Simplify right side
    10,613.70x = 69,638,988.45
  5. Step 5: Solve for x
    x = 69,638,988.45/10,613.70
  6. Step 6: Final answer
    x = 6,561.24

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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.