Home / 10,765.36-14,859.13-6,988.32

Finding the Fourth Proportional to 10,765.36, 14,859.13 and 6,988.32

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Solution

The fourth proportional to 10,765.36, 14,859.13 and 6,988.32 is: 9,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.36 : 14,859.13 = 6,988.32 : x
  2. Step 2: Convert to fraction form
    10,765.36/14,859.13 = 6,988.32/x
  3. Step 3: Cross multiply
    10,765.36x = 14,859.13 × 6,988.32
  4. Step 4: Simplify right side
    10,765.36x = 103,840,325.81
  5. Step 5: Solve for x
    x = 103,840,325.81/10,765.36
  6. Step 6: Final answer
    x = 9,645.79

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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.