Home / 11,237.40-15,507.45-6,457.39

Finding the Fourth Proportional to 11,237.40, 15,507.45 and 6,457.39

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Solution

The fourth proportional to 11,237.40, 15,507.45 and 6,457.39 is: 8,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.40 : 15,507.45 = 6,457.39 : x
  2. Step 2: Convert to fraction form
    11,237.40/15,507.45 = 6,457.39/x
  3. Step 3: Cross multiply
    11,237.40x = 15,507.45 × 6,457.39
  4. Step 4: Simplify right side
    11,237.40x = 100,137,613.79
  5. Step 5: Solve for x
    x = 100,137,613.79/11,237.40
  6. Step 6: Final answer
    x = 8,911.10

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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.