Home / 13,276.48-18,323.20-8,574.40

Finding the Fourth Proportional to 13,276.48, 18,323.20 and 8,574.40

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Solution

The fourth proportional to 13,276.48, 18,323.20 and 8,574.40 is: 11,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.48 : 18,323.20 = 8,574.40 : x
  2. Step 2: Convert to fraction form
    13,276.48/18,323.20 = 8,574.40/x
  3. Step 3: Cross multiply
    13,276.48x = 18,323.20 × 8,574.40
  4. Step 4: Simplify right side
    13,276.48x = 157,110,446.08
  5. Step 5: Solve for x
    x = 157,110,446.08/13,276.48
  6. Step 6: Final answer
    x = 11,833.74

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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.