Home / 13,185.46-19,779.93-4,871.32

Finding the Fourth Proportional to 13,185.46, 19,779.93 and 4,871.32

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Solution

The fourth proportional to 13,185.46, 19,779.93 and 4,871.32 is: 7,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.46 : 19,779.93 = 4,871.32 : x
  2. Step 2: Convert to fraction form
    13,185.46/19,779.93 = 4,871.32/x
  3. Step 3: Cross multiply
    13,185.46x = 19,779.93 × 4,871.32
  4. Step 4: Simplify right side
    13,185.46x = 96,354,368.61
  5. Step 5: Solve for x
    x = 96,354,368.61/13,185.46
  6. Step 6: Final answer
    x = 7,307.62

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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.