Home / 6,909.75-10,364.69-1,715.63

Finding the Fourth Proportional to 6,909.75, 10,364.69 and 1,715.63

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Solution

The fourth proportional to 6,909.75, 10,364.69 and 1,715.63 is: 2,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.75 : 10,364.69 = 1,715.63 : x
  2. Step 2: Convert to fraction form
    6,909.75/10,364.69 = 1,715.63/x
  3. Step 3: Cross multiply
    6,909.75x = 10,364.69 × 1,715.63
  4. Step 4: Simplify right side
    6,909.75x = 17,781,925.57
  5. Step 5: Solve for x
    x = 17,781,925.57/6,909.75
  6. Step 6: Final answer
    x = 2,573.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.