Home / 10,864.92-14,995.20-6,886.40

Finding the Fourth Proportional to 10,864.92, 14,995.20 and 6,886.40

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Solution

The fourth proportional to 10,864.92, 14,995.20 and 6,886.40 is: 9,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.92 : 14,995.20 = 6,886.40 : x
  2. Step 2: Convert to fraction form
    10,864.92/14,995.20 = 6,886.40/x
  3. Step 3: Cross multiply
    10,864.92x = 14,995.20 × 6,886.40
  4. Step 4: Simplify right side
    10,864.92x = 103,262,945.28
  5. Step 5: Solve for x
    x = 103,262,945.28/10,864.92
  6. Step 6: Final answer
    x = 9,504.25

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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.