Home / 18,276.90-25,220.71-10,319.91

Finding the Fourth Proportional to 18,276.90, 25,220.71 and 10,319.91

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Solution

The fourth proportional to 18,276.90, 25,220.71 and 10,319.91 is: 14,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.90 : 25,220.71 = 10,319.91 : x
  2. Step 2: Convert to fraction form
    18,276.90/25,220.71 = 10,319.91/x
  3. Step 3: Cross multiply
    18,276.90x = 25,220.71 × 10,319.91
  4. Step 4: Simplify right side
    18,276.90x = 260,275,457.34
  5. Step 5: Solve for x
    x = 260,275,457.34/18,276.90
  6. Step 6: Final answer
    x = 14,240.68

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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.