Home / 15,506.60-21,399.12-8,433.02

Finding the Fourth Proportional to 15,506.60, 21,399.12 and 8,433.02

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Solution

The fourth proportional to 15,506.60, 21,399.12 and 8,433.02 is: 11,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.60 : 21,399.12 = 8,433.02 : x
  2. Step 2: Convert to fraction form
    15,506.60/21,399.12 = 8,433.02/x
  3. Step 3: Cross multiply
    15,506.60x = 21,399.12 × 8,433.02
  4. Step 4: Simplify right side
    15,506.60x = 180,459,206.94
  5. Step 5: Solve for x
    x = 180,459,206.94/15,506.60
  6. Step 6: Final answer
    x = 11,637.57

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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.