Home / 15,618.65-21,553.98-8,545.19

Finding the Fourth Proportional to 15,618.65, 21,553.98 and 8,545.19

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Solution

The fourth proportional to 15,618.65, 21,553.98 and 8,545.19 is: 11,792.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.65 : 21,553.98 = 8,545.19 : x
  2. Step 2: Convert to fraction form
    15,618.65/21,553.98 = 8,545.19/x
  3. Step 3: Cross multiply
    15,618.65x = 21,553.98 × 8,545.19
  4. Step 4: Simplify right side
    15,618.65x = 184,182,854.36
  5. Step 5: Solve for x
    x = 184,182,854.36/15,618.65
  6. Step 6: Final answer
    x = 11,792.50

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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.