Home / 9,718.74-14,580.12-4,172.40

Finding the Fourth Proportional to 9,718.74, 14,580.12 and 4,172.40

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Solution

The fourth proportional to 9,718.74, 14,580.12 and 4,172.40 is: 6,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,718.74 : 14,580.12 = 4,172.40 : x
  2. Step 2: Convert to fraction form
    9,718.74/14,580.12 = 4,172.40/x
  3. Step 3: Cross multiply
    9,718.74x = 14,580.12 × 4,172.40
  4. Step 4: Simplify right side
    9,718.74x = 60,834,092.69
  5. Step 5: Solve for x
    x = 60,834,092.69/9,718.74
  6. Step 6: Final answer
    x = 6,259.46

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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.