Home / 14,155.02-19,534.30-8,187.08

Finding the Fourth Proportional to 14,155.02, 19,534.30 and 8,187.08

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Solution

The fourth proportional to 14,155.02, 19,534.30 and 8,187.08 is: 11,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.02 : 19,534.30 = 8,187.08 : x
  2. Step 2: Convert to fraction form
    14,155.02/19,534.30 = 8,187.08/x
  3. Step 3: Cross multiply
    14,155.02x = 19,534.30 × 8,187.08
  4. Step 4: Simplify right side
    14,155.02x = 159,928,758.70
  5. Step 5: Solve for x
    x = 159,928,758.70/14,155.02
  6. Step 6: Final answer
    x = 11,298.38

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Double scale
Find fourth proportional to 14,156.02, 19,535.68 and 8,188.08
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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.