Home / 19,345.04-29,012.90-12,314.51

Finding the Fourth Proportional to 19,345.04, 29,012.90 and 12,314.51

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Solution

The fourth proportional to 19,345.04, 29,012.90 and 12,314.51 is: 18,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.04 : 29,012.90 = 12,314.51 : x
  2. Step 2: Convert to fraction form
    19,345.04/29,012.90 = 12,314.51/x
  3. Step 3: Cross multiply
    19,345.04x = 29,012.90 × 12,314.51
  4. Step 4: Simplify right side
    19,345.04x = 357,279,440.54
  5. Step 5: Solve for x
    x = 357,279,440.54/19,345.04
  6. Step 6: Final answer
    x = 18,468.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.