Home / 15,225.95-21,010.65-9,256.79

Finding the Fourth Proportional to 15,225.95, 21,010.65 and 9,256.79

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Solution

The fourth proportional to 15,225.95, 21,010.65 and 9,256.79 is: 12,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.95 : 21,010.65 = 9,256.79 : x
  2. Step 2: Convert to fraction form
    15,225.95/21,010.65 = 9,256.79/x
  3. Step 3: Cross multiply
    15,225.95x = 21,010.65 × 9,256.79
  4. Step 4: Simplify right side
    15,225.95x = 194,491,174.81
  5. Step 5: Solve for x
    x = 194,491,174.81/15,225.95
  6. Step 6: Final answer
    x = 12,773.66

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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.