Home / 15,440.10-21,307.35-8,725.74

Finding the Fourth Proportional to 15,440.10, 21,307.35 and 8,725.74

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Solution

The fourth proportional to 15,440.10, 21,307.35 and 8,725.74 is: 12,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.10 : 21,307.35 = 8,725.74 : x
  2. Step 2: Convert to fraction form
    15,440.10/21,307.35 = 8,725.74/x
  3. Step 3: Cross multiply
    15,440.10x = 21,307.35 × 8,725.74
  4. Step 4: Simplify right side
    15,440.10x = 185,922,396.19
  5. Step 5: Solve for x
    x = 185,922,396.19/15,440.10
  6. Step 6: Final answer
    x = 12,041.53

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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.