Home / 13,210.54-19,818.78-4,445.18

Finding the Fourth Proportional to 13,210.54, 19,818.78 and 4,445.18

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Solution

The fourth proportional to 13,210.54, 19,818.78 and 4,445.18 is: 6,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.54 : 19,818.78 = 4,445.18 : x
  2. Step 2: Convert to fraction form
    13,210.54/19,818.78 = 4,445.18/x
  3. Step 3: Cross multiply
    13,210.54x = 19,818.78 × 4,445.18
  4. Step 4: Simplify right side
    13,210.54x = 88,098,044.48
  5. Step 5: Solve for x
    x = 88,098,044.48/13,210.54
  6. Step 6: Final answer
    x = 6,668.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.