Home / 13,810.20-19,062.36-13,104.78

Finding the Fourth Proportional to 13,810.20, 19,062.36 and 13,104.78

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Solution

The fourth proportional to 13,810.20, 19,062.36 and 13,104.78 is: 18,088.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.20 : 19,062.36 = 13,104.78 : x
  2. Step 2: Convert to fraction form
    13,810.20/19,062.36 = 13,104.78/x
  3. Step 3: Cross multiply
    13,810.20x = 19,062.36 × 13,104.78
  4. Step 4: Simplify right side
    13,810.20x = 249,808,034.08
  5. Step 5: Solve for x
    x = 249,808,034.08/13,810.20
  6. Step 6: Final answer
    x = 18,088.66

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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.