Home / 12,688.07-19,036.60-5,667.44

Finding the Fourth Proportional to 12,688.07, 19,036.60 and 5,667.44

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Solution

The fourth proportional to 12,688.07, 19,036.60 and 5,667.44 is: 8,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.07 : 19,036.60 = 5,667.44 : x
  2. Step 2: Convert to fraction form
    12,688.07/19,036.60 = 5,667.44/x
  3. Step 3: Cross multiply
    12,688.07x = 19,036.60 × 5,667.44
  4. Step 4: Simplify right side
    12,688.07x = 107,888,678.95
  5. Step 5: Solve for x
    x = 107,888,678.95/12,688.07
  6. Step 6: Final answer
    x = 8,503.16

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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.