Home / 15,390.04-21,238.73-8,675.95

Finding the Fourth Proportional to 15,390.04, 21,238.73 and 8,675.95

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Solution

The fourth proportional to 15,390.04, 21,238.73 and 8,675.95 is: 11,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.04 : 21,238.73 = 8,675.95 : x
  2. Step 2: Convert to fraction form
    15,390.04/21,238.73 = 8,675.95/x
  3. Step 3: Cross multiply
    15,390.04x = 21,238.73 × 8,675.95
  4. Step 4: Simplify right side
    15,390.04x = 184,266,159.54
  5. Step 5: Solve for x
    x = 184,266,159.54/15,390.04
  6. Step 6: Final answer
    x = 11,973.08

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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.