Home / 15,444.98-21,315.76-8,641.47

Finding the Fourth Proportional to 15,444.98, 21,315.76 and 8,641.47

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Solution

The fourth proportional to 15,444.98, 21,315.76 and 8,641.47 is: 11,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.98 : 21,315.76 = 8,641.47 : x
  2. Step 2: Convert to fraction form
    15,444.98/21,315.76 = 8,641.47/x
  3. Step 3: Cross multiply
    15,444.98x = 21,315.76 × 8,641.47
  4. Step 4: Simplify right side
    15,444.98x = 184,199,558.90
  5. Step 5: Solve for x
    x = 184,199,558.90/15,444.98
  6. Step 6: Final answer
    x = 11,926.18

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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.