Home / 12,526.89-17,287.29-6,861.51

Finding the Fourth Proportional to 12,526.89, 17,287.29 and 6,861.51

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Solution

The fourth proportional to 12,526.89, 17,287.29 and 6,861.51 is: 9,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.89 : 17,287.29 = 6,861.51 : x
  2. Step 2: Convert to fraction form
    12,526.89/17,287.29 = 6,861.51/x
  3. Step 3: Cross multiply
    12,526.89x = 17,287.29 × 6,861.51
  4. Step 4: Simplify right side
    12,526.89x = 118,616,913.21
  5. Step 5: Solve for x
    x = 118,616,913.21/12,526.89
  6. Step 6: Final answer
    x = 9,468.98

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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.