Home / 8,971.48-13,457.23-4,290.39

Finding the Fourth Proportional to 8,971.48, 13,457.23 and 4,290.39

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Solution

The fourth proportional to 8,971.48, 13,457.23 and 4,290.39 is: 6,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.48 : 13,457.23 = 4,290.39 : x
  2. Step 2: Convert to fraction form
    8,971.48/13,457.23 = 4,290.39/x
  3. Step 3: Cross multiply
    8,971.48x = 13,457.23 × 4,290.39
  4. Step 4: Simplify right side
    8,971.48x = 57,736,754.29
  5. Step 5: Solve for x
    x = 57,736,754.29/8,971.48
  6. Step 6: Final answer
    x = 6,435.59

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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.