Home / 15,500.04-21,378.15-10,456.26

Finding the Fourth Proportional to 15,500.04, 21,378.15 and 10,456.26

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Solution

The fourth proportional to 15,500.04, 21,378.15 and 10,456.26 is: 14,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500.04 : 21,378.15 = 10,456.26 : x
  2. Step 2: Convert to fraction form
    15,500.04/21,378.15 = 10,456.26/x
  3. Step 3: Cross multiply
    15,500.04x = 21,378.15 × 10,456.26
  4. Step 4: Simplify right side
    15,500.04x = 223,535,494.72
  5. Step 5: Solve for x
    x = 223,535,494.72/15,500.04
  6. Step 6: Final answer
    x = 14,421.61

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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.