Home / 13,195.98-18,210.02-7,888.05

Finding the Fourth Proportional to 13,195.98, 18,210.02 and 7,888.05

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Solution

The fourth proportional to 13,195.98, 18,210.02 and 7,888.05 is: 10,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.98 : 18,210.02 = 7,888.05 : x
  2. Step 2: Convert to fraction form
    13,195.98/18,210.02 = 7,888.05/x
  3. Step 3: Cross multiply
    13,195.98x = 18,210.02 × 7,888.05
  4. Step 4: Simplify right side
    13,195.98x = 143,641,508.82
  5. Step 5: Solve for x
    x = 143,641,508.82/13,195.98
  6. Step 6: Final answer
    x = 10,885.25

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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.