Home / 10,218.40-14,099.88-5,911.36

Finding the Fourth Proportional to 10,218.40, 14,099.88 and 5,911.36

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Solution

The fourth proportional to 10,218.40, 14,099.88 and 5,911.36 is: 8,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.40 : 14,099.88 = 5,911.36 : x
  2. Step 2: Convert to fraction form
    10,218.40/14,099.88 = 5,911.36/x
  3. Step 3: Cross multiply
    10,218.40x = 14,099.88 × 5,911.36
  4. Step 4: Simplify right side
    10,218.40x = 83,349,466.64
  5. Step 5: Solve for x
    x = 83,349,466.64/10,218.40
  6. Step 6: Final answer
    x = 8,156.80

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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.