Home / 13,210.53-19,817.04-4,779.15

Finding the Fourth Proportional to 13,210.53, 19,817.04 and 4,779.15

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Solution

The fourth proportional to 13,210.53, 19,817.04 and 4,779.15 is: 7,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.53 : 19,817.04 = 4,779.15 : x
  2. Step 2: Convert to fraction form
    13,210.53/19,817.04 = 4,779.15/x
  3. Step 3: Cross multiply
    13,210.53x = 19,817.04 × 4,779.15
  4. Step 4: Simplify right side
    13,210.53x = 94,708,606.72
  5. Step 5: Solve for x
    x = 94,708,606.72/13,210.53
  6. Step 6: Final answer
    x = 7,169.18

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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.