Home / 10,888.89-16,312.78-6,433.26

Finding the Fourth Proportional to 10,888.89, 16,312.78 and 6,433.26

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Solution

The fourth proportional to 10,888.89, 16,312.78 and 6,433.26 is: 9,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.89 : 16,312.78 = 6,433.26 : x
  2. Step 2: Convert to fraction form
    10,888.89/16,312.78 = 6,433.26/x
  3. Step 3: Cross multiply
    10,888.89x = 16,312.78 × 6,433.26
  4. Step 4: Simplify right side
    10,888.89x = 104,944,298.20
  5. Step 5: Solve for x
    x = 104,944,298.20/10,888.89
  6. Step 6: Final answer
    x = 9,637.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.