Home / 15,645.34-21,585.28-8,926.24

Finding the Fourth Proportional to 15,645.34, 21,585.28 and 8,926.24

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Solution

The fourth proportional to 15,645.34, 21,585.28 and 8,926.24 is: 12,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.34 : 21,585.28 = 8,926.24 : x
  2. Step 2: Convert to fraction form
    15,645.34/21,585.28 = 8,926.24/x
  3. Step 3: Cross multiply
    15,645.34x = 21,585.28 × 8,926.24
  4. Step 4: Simplify right side
    15,645.34x = 192,675,389.75
  5. Step 5: Solve for x
    x = 192,675,389.75/15,645.34
  6. Step 6: Final answer
    x = 12,315.19

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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.