Home / 8,880.40-13,307.64-4,985.92

Finding the Fourth Proportional to 8,880.40, 13,307.64 and 4,985.92

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Solution

The fourth proportional to 8,880.40, 13,307.64 and 4,985.92 is: 7,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.40 : 13,307.64 = 4,985.92 : x
  2. Step 2: Convert to fraction form
    8,880.40/13,307.64 = 4,985.92/x
  3. Step 3: Cross multiply
    8,880.40x = 13,307.64 × 4,985.92
  4. Step 4: Simplify right side
    8,880.40x = 66,350,828.43
  5. Step 5: Solve for x
    x = 66,350,828.43/8,880.40
  6. Step 6: Final answer
    x = 7,471.60

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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.