Home / 15,506.67-21,399.29-8,433.10

Finding the Fourth Proportional to 15,506.67, 21,399.29 and 8,433.10

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Solution

The fourth proportional to 15,506.67, 21,399.29 and 8,433.10 is: 11,637.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.67 : 21,399.29 = 8,433.10 : x
  2. Step 2: Convert to fraction form
    15,506.67/21,399.29 = 8,433.10/x
  3. Step 3: Cross multiply
    15,506.67x = 21,399.29 × 8,433.10
  4. Step 4: Simplify right side
    15,506.67x = 180,462,352.50
  5. Step 5: Solve for x
    x = 180,462,352.50/15,506.67
  6. Step 6: Final answer
    x = 11,637.72

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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.