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Finding the Fourth Proportional to 14,353.00, 19,808.35 and 7,980.05

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Solution

The fourth proportional to 14,353.00, 19,808.35 and 7,980.05 is: 11,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.00 : 19,808.35 = 7,980.05 : x
  2. Step 2: Convert to fraction form
    14,353.00/19,808.35 = 7,980.05/x
  3. Step 3: Cross multiply
    14,353.00x = 19,808.35 × 7,980.05
  4. Step 4: Simplify right side
    14,353.00x = 158,071,652.99
  5. Step 5: Solve for x
    x = 158,071,652.99/14,353.00
  6. Step 6: Final answer
    x = 11,013.15

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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.