Home / 10,417.72-14,361.48-7,428.35

Finding the Fourth Proportional to 10,417.72, 14,361.48 and 7,428.35

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Solution

The fourth proportional to 10,417.72, 14,361.48 and 7,428.35 is: 10,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,417.72 : 14,361.48 = 7,428.35 : x
  2. Step 2: Convert to fraction form
    10,417.72/14,361.48 = 7,428.35/x
  3. Step 3: Cross multiply
    10,417.72x = 14,361.48 × 7,428.35
  4. Step 4: Simplify right side
    10,417.72x = 106,682,099.96
  5. Step 5: Solve for x
    x = 106,682,099.96/10,417.72
  6. Step 6: Final answer
    x = 10,240.45

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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.