Home / 13,423.02-18,532.85-8,394.81

Finding the Fourth Proportional to 13,423.02, 18,532.85 and 8,394.81

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Solution

The fourth proportional to 13,423.02, 18,532.85 and 8,394.81 is: 11,590.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.02 : 18,532.85 = 8,394.81 : x
  2. Step 2: Convert to fraction form
    13,423.02/18,532.85 = 8,394.81/x
  3. Step 3: Cross multiply
    13,423.02x = 18,532.85 × 8,394.81
  4. Step 4: Simplify right side
    13,423.02x = 155,579,712.53
  5. Step 5: Solve for x
    x = 155,579,712.53/13,423.02
  6. Step 6: Final answer
    x = 11,590.51

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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.