Home / 12,545.23-17,315.36-9,192.91

Finding the Fourth Proportional to 12,545.23, 17,315.36 and 9,192.91

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Solution

The fourth proportional to 12,545.23, 17,315.36 and 9,192.91 is: 12,688.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.23 : 17,315.36 = 9,192.91 : x
  2. Step 2: Convert to fraction form
    12,545.23/17,315.36 = 9,192.91/x
  3. Step 3: Cross multiply
    12,545.23x = 17,315.36 × 9,192.91
  4. Step 4: Simplify right side
    12,545.23x = 159,178,500.13
  5. Step 5: Solve for x
    x = 159,178,500.13/12,545.23
  6. Step 6: Final answer
    x = 12,688.37

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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.