Home / 13,557.48-18,705.06-7,588.20

Finding the Fourth Proportional to 13,557.48, 18,705.06 and 7,588.20

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Solution

The fourth proportional to 13,557.48, 18,705.06 and 7,588.20 is: 10,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.48 : 18,705.06 = 7,588.20 : x
  2. Step 2: Convert to fraction form
    13,557.48/18,705.06 = 7,588.20/x
  3. Step 3: Cross multiply
    13,557.48x = 18,705.06 × 7,588.20
  4. Step 4: Simplify right side
    13,557.48x = 141,937,736.29
  5. Step 5: Solve for x
    x = 141,937,736.29/13,557.48
  6. Step 6: Final answer
    x = 10,469.33

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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.