Home / 10,639.08-14,667.48-8,646.48

Finding the Fourth Proportional to 10,639.08, 14,667.48 and 8,646.48

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Solution

The fourth proportional to 10,639.08, 14,667.48 and 8,646.48 is: 11,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.08 : 14,667.48 = 8,646.48 : x
  2. Step 2: Convert to fraction form
    10,639.08/14,667.48 = 8,646.48/x
  3. Step 3: Cross multiply
    10,639.08x = 14,667.48 × 8,646.48
  4. Step 4: Simplify right side
    10,639.08x = 126,822,072.47
  5. Step 5: Solve for x
    x = 126,822,072.47/10,639.08
  6. Step 6: Final answer
    x = 11,920.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.