Home / 10,860.24-14,987.28-6,666

Finding the Fourth Proportional to 10,860.24, 14,987.28 and 6,666

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Solution

The fourth proportional to 10,860.24, 14,987.28 and 6,666 is: 9,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.24 : 14,987.28 = 6,666 : x
  2. Step 2: Convert to fraction form
    10,860.24/14,987.28 = 6,666/x
  3. Step 3: Cross multiply
    10,860.24x = 14,987.28 × 6,666
  4. Step 4: Simplify right side
    10,860.24x = 99,905,208.48
  5. Step 5: Solve for x
    x = 99,905,208.48/10,860.24
  6. Step 6: Final answer
    x = 9,199.17

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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.