Home / 14,715.57-20,307.50-8,429.16

Finding the Fourth Proportional to 14,715.57, 20,307.50 and 8,429.16

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Solution

The fourth proportional to 14,715.57, 20,307.50 and 8,429.16 is: 11,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.57 : 20,307.50 = 8,429.16 : x
  2. Step 2: Convert to fraction form
    14,715.57/20,307.50 = 8,429.16/x
  3. Step 3: Cross multiply
    14,715.57x = 20,307.50 × 8,429.16
  4. Step 4: Simplify right side
    14,715.57x = 171,175,124.55
  5. Step 5: Solve for x
    x = 171,175,124.55/14,715.57
  6. Step 6: Final answer
    x = 11,632.25

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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.