Home / 15,351.19-21,184.64-8,545.07

Finding the Fourth Proportional to 15,351.19, 21,184.64 and 8,545.07

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Solution

The fourth proportional to 15,351.19, 21,184.64 and 8,545.07 is: 11,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.19 : 21,184.64 = 8,545.07 : x
  2. Step 2: Convert to fraction form
    15,351.19/21,184.64 = 8,545.07/x
  3. Step 3: Cross multiply
    15,351.19x = 21,184.64 × 8,545.07
  4. Step 4: Simplify right side
    15,351.19x = 181,024,168.42
  5. Step 5: Solve for x
    x = 181,024,168.42/15,351.19
  6. Step 6: Final answer
    x = 11,792.19

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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.