Home / 12,931.52-19,405.02-5,535.98

Finding the Fourth Proportional to 12,931.52, 19,405.02 and 5,535.98

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Solution

The fourth proportional to 12,931.52, 19,405.02 and 5,535.98 is: 8,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.52 : 19,405.02 = 5,535.98 : x
  2. Step 2: Convert to fraction form
    12,931.52/19,405.02 = 5,535.98/x
  3. Step 3: Cross multiply
    12,931.52x = 19,405.02 × 5,535.98
  4. Step 4: Simplify right side
    12,931.52x = 107,425,802.62
  5. Step 5: Solve for x
    x = 107,425,802.62/12,931.52
  6. Step 6: Final answer
    x = 8,307.28

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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.