Home / 13,652.28-18,833.85-9,869.45

Finding the Fourth Proportional to 13,652.28, 18,833.85 and 9,869.45

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Solution

The fourth proportional to 13,652.28, 18,833.85 and 9,869.45 is: 13,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.28 : 18,833.85 = 9,869.45 : x
  2. Step 2: Convert to fraction form
    13,652.28/18,833.85 = 9,869.45/x
  3. Step 3: Cross multiply
    13,652.28x = 18,833.85 × 9,869.45
  4. Step 4: Simplify right side
    13,652.28x = 185,879,646.71
  5. Step 5: Solve for x
    x = 185,879,646.71/13,652.28
  6. Step 6: Final answer
    x = 13,615.28

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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.