Home / 13,312.53-19,962.96-4,986.71

Finding the Fourth Proportional to 13,312.53, 19,962.96 and 4,986.71

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Solution

The fourth proportional to 13,312.53, 19,962.96 and 4,986.71 is: 7,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.53 : 19,962.96 = 4,986.71 : x
  2. Step 2: Convert to fraction form
    13,312.53/19,962.96 = 4,986.71/x
  3. Step 3: Cross multiply
    13,312.53x = 19,962.96 × 4,986.71
  4. Step 4: Simplify right side
    13,312.53x = 99,549,492.26
  5. Step 5: Solve for x
    x = 99,549,492.26/13,312.53
  6. Step 6: Final answer
    x = 7,477.88

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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.