Home / 13,278.48-19,915.32-4,956.60

Finding the Fourth Proportional to 13,278.48, 19,915.32 and 4,956.60

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Solution

The fourth proportional to 13,278.48, 19,915.32 and 4,956.60 is: 7,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.48 : 19,915.32 = 4,956.60 : x
  2. Step 2: Convert to fraction form
    13,278.48/19,915.32 = 4,956.60/x
  3. Step 3: Cross multiply
    13,278.48x = 19,915.32 × 4,956.60
  4. Step 4: Simplify right side
    13,278.48x = 98,712,275.11
  5. Step 5: Solve for x
    x = 98,712,275.11/13,278.48
  6. Step 6: Final answer
    x = 7,434.00

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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.