Home / 19,005.40-26,226.48-10,621.90

Finding the Fourth Proportional to 19,005.40, 26,226.48 and 10,621.90

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Solution

The fourth proportional to 19,005.40, 26,226.48 and 10,621.90 is: 14,657.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.40 : 26,226.48 = 10,621.90 : x
  2. Step 2: Convert to fraction form
    19,005.40/26,226.48 = 10,621.90/x
  3. Step 3: Cross multiply
    19,005.40x = 26,226.48 × 10,621.90
  4. Step 4: Simplify right side
    19,005.40x = 278,575,047.91
  5. Step 5: Solve for x
    x = 278,575,047.91/19,005.40
  6. Step 6: Final answer
    x = 14,657.68

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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.