Home / 15,511.48-21,398.90-10,474.08

Finding the Fourth Proportional to 15,511.48, 21,398.90 and 10,474.08

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Solution

The fourth proportional to 15,511.48, 21,398.90 and 10,474.08 is: 14,449.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511.48 : 21,398.90 = 10,474.08 : x
  2. Step 2: Convert to fraction form
    15,511.48/21,398.90 = 10,474.08/x
  3. Step 3: Cross multiply
    15,511.48x = 21,398.90 × 10,474.08
  4. Step 4: Simplify right side
    15,511.48x = 224,133,790.51
  5. Step 5: Solve for x
    x = 224,133,790.51/15,511.48
  6. Step 6: Final answer
    x = 14,449.54

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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.