Home / 13,557.22-18,710.14-7,588.80

Finding the Fourth Proportional to 13,557.22, 18,710.14 and 7,588.80

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Solution

The fourth proportional to 13,557.22, 18,710.14 and 7,588.80 is: 10,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.22 : 18,710.14 = 7,588.80 : x
  2. Step 2: Convert to fraction form
    13,557.22/18,710.14 = 7,588.80/x
  3. Step 3: Cross multiply
    13,557.22x = 18,710.14 × 7,588.80
  4. Step 4: Simplify right side
    13,557.22x = 141,987,510.43
  5. Step 5: Solve for x
    x = 141,987,510.43/13,557.22
  6. Step 6: Final answer
    x = 10,473.20

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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.