Home / 12,557.04-17,411.55-12,140.70

Finding the Fourth Proportional to 12,557.04, 17,411.55 and 12,140.70

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Solution

The fourth proportional to 12,557.04, 17,411.55 and 12,140.70 is: 16,834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.04 : 17,411.55 = 12,140.70 : x
  2. Step 2: Convert to fraction form
    12,557.04/17,411.55 = 12,140.70/x
  3. Step 3: Cross multiply
    12,557.04x = 17,411.55 × 12,140.70
  4. Step 4: Simplify right side
    12,557.04x = 211,388,405.09
  5. Step 5: Solve for x
    x = 211,388,405.09/12,557.04
  6. Step 6: Final answer
    x = 16,834.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.