Home / 13,563.45-18,705.07-9,307.00

Finding the Fourth Proportional to 13,563.45, 18,705.07 and 9,307.00

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Solution

The fourth proportional to 13,563.45, 18,705.07 and 9,307.00 is: 12,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.45 : 18,705.07 = 9,307.00 : x
  2. Step 2: Convert to fraction form
    13,563.45/18,705.07 = 9,307.00/x
  3. Step 3: Cross multiply
    13,563.45x = 18,705.07 × 9,307.00
  4. Step 4: Simplify right side
    13,563.45x = 174,088,121.51
  5. Step 5: Solve for x
    x = 174,088,121.51/13,563.45
  6. Step 6: Final answer
    x = 12,835.09

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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.