Home / 10,815.89-14,927.36-6,341.40

Finding the Fourth Proportional to 10,815.89, 14,927.36 and 6,341.40

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Solution

The fourth proportional to 10,815.89, 14,927.36 and 6,341.40 is: 8,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.89 : 14,927.36 = 6,341.40 : x
  2. Step 2: Convert to fraction form
    10,815.89/14,927.36 = 6,341.40/x
  3. Step 3: Cross multiply
    10,815.89x = 14,927.36 × 6,341.40
  4. Step 4: Simplify right side
    10,815.89x = 94,660,329.00
  5. Step 5: Solve for x
    x = 94,660,329.00/10,815.89
  6. Step 6: Final answer
    x = 8,751.97

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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.