Home / 10,859.10-14,985.99-6,668.70

Finding the Fourth Proportional to 10,859.10, 14,985.99 and 6,668.70

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Solution

The fourth proportional to 10,859.10, 14,985.99 and 6,668.70 is: 9,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.10 : 14,985.99 = 6,668.70 : x
  2. Step 2: Convert to fraction form
    10,859.10/14,985.99 = 6,668.70/x
  3. Step 3: Cross multiply
    10,859.10x = 14,985.99 × 6,668.70
  4. Step 4: Simplify right side
    10,859.10x = 99,937,071.51
  5. Step 5: Solve for x
    x = 99,937,071.51/10,859.10
  6. Step 6: Final answer
    x = 9,203.07

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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.