Home / 12,700.69-19,054.95-5,686.60

Finding the Fourth Proportional to 12,700.69, 19,054.95 and 5,686.60

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Solution

The fourth proportional to 12,700.69, 19,054.95 and 5,686.60 is: 8,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.69 : 19,054.95 = 5,686.60 : x
  2. Step 2: Convert to fraction form
    12,700.69/19,054.95 = 5,686.60/x
  3. Step 3: Cross multiply
    12,700.69x = 19,054.95 × 5,686.60
  4. Step 4: Simplify right side
    12,700.69x = 108,357,878.67
  5. Step 5: Solve for x
    x = 108,357,878.67/12,700.69
  6. Step 6: Final answer
    x = 8,531.65

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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.