Home / 13,512.84-18,647.40-7,545.07

Finding the Fourth Proportional to 13,512.84, 18,647.40 and 7,545.07

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Solution

The fourth proportional to 13,512.84, 18,647.40 and 7,545.07 is: 10,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.84 : 18,647.40 = 7,545.07 : x
  2. Step 2: Convert to fraction form
    13,512.84/18,647.40 = 7,545.07/x
  3. Step 3: Cross multiply
    13,512.84x = 18,647.40 × 7,545.07
  4. Step 4: Simplify right side
    13,512.84x = 140,695,891.70
  5. Step 5: Solve for x
    x = 140,695,891.70/13,512.84
  6. Step 6: Final answer
    x = 10,412.01

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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.