Home / 12,429.21-18,626.77-6,574.13

Finding the Fourth Proportional to 12,429.21, 18,626.77 and 6,574.13

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Solution

The fourth proportional to 12,429.21, 18,626.77 and 6,574.13 is: 9,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.21 : 18,626.77 = 6,574.13 : x
  2. Step 2: Convert to fraction form
    12,429.21/18,626.77 = 6,574.13/x
  3. Step 3: Cross multiply
    12,429.21x = 18,626.77 × 6,574.13
  4. Step 4: Simplify right side
    12,429.21x = 122,454,681.46
  5. Step 5: Solve for x
    x = 122,454,681.46/12,429.21
  6. Step 6: Final answer
    x = 9,852.17

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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.