Home / 15,454.08-21,323.52-9,791.04

Finding the Fourth Proportional to 15,454.08, 21,323.52 and 9,791.04

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Solution

The fourth proportional to 15,454.08, 21,323.52 and 9,791.04 is: 13,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.08 : 21,323.52 = 9,791.04 : x
  2. Step 2: Convert to fraction form
    15,454.08/21,323.52 = 9,791.04/x
  3. Step 3: Cross multiply
    15,454.08x = 21,323.52 × 9,791.04
  4. Step 4: Simplify right side
    15,454.08x = 208,779,437.26
  5. Step 5: Solve for x
    x = 208,779,437.26/15,454.08
  6. Step 6: Final answer
    x = 13,509.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.