Home / 13,312.62-19,960.02-4,991.58

Finding the Fourth Proportional to 13,312.62, 19,960.02 and 4,991.58

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Solution

The fourth proportional to 13,312.62, 19,960.02 and 4,991.58 is: 7,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.62 : 19,960.02 = 4,991.58 : x
  2. Step 2: Convert to fraction form
    13,312.62/19,960.02 = 4,991.58/x
  3. Step 3: Cross multiply
    13,312.62x = 19,960.02 × 4,991.58
  4. Step 4: Simplify right side
    13,312.62x = 99,632,036.63
  5. Step 5: Solve for x
    x = 99,632,036.63/13,312.62
  6. Step 6: Final answer
    x = 7,484.03

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1.5x scale

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.