Home / 19,191.68-28,779.93-9,328.04

Finding the Fourth Proportional to 19,191.68, 28,779.93 and 9,328.04

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Solution

The fourth proportional to 19,191.68, 28,779.93 and 9,328.04 is: 13,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.68 : 28,779.93 = 9,328.04 : x
  2. Step 2: Convert to fraction form
    19,191.68/28,779.93 = 9,328.04/x
  3. Step 3: Cross multiply
    19,191.68x = 28,779.93 × 9,328.04
  4. Step 4: Simplify right side
    19,191.68x = 268,460,338.24
  5. Step 5: Solve for x
    x = 268,460,338.24/19,191.68
  6. Step 6: Final answer
    x = 13,988.37

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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.