Home / 15,551.36-21,461.45-8,838.11

Finding the Fourth Proportional to 15,551.36, 21,461.45 and 8,838.11

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Solution

The fourth proportional to 15,551.36, 21,461.45 and 8,838.11 is: 12,196.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.36 : 21,461.45 = 8,838.11 : x
  2. Step 2: Convert to fraction form
    15,551.36/21,461.45 = 8,838.11/x
  3. Step 3: Cross multiply
    15,551.36x = 21,461.45 × 8,838.11
  4. Step 4: Simplify right side
    15,551.36x = 189,678,665.32
  5. Step 5: Solve for x
    x = 189,678,665.32/15,551.36
  6. Step 6: Final answer
    x = 12,196.92

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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.