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Finding the Fourth Proportional to 8,931.03, 13,307.42 and 8,533.59

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Solution

The fourth proportional to 8,931.03, 13,307.42 and 8,533.59 is: 12,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.03 : 13,307.42 = 8,533.59 : x
  2. Step 2: Convert to fraction form
    8,931.03/13,307.42 = 8,533.59/x
  3. Step 3: Cross multiply
    8,931.03x = 13,307.42 × 8,533.59
  4. Step 4: Simplify right side
    8,931.03x = 113,560,023.57
  5. Step 5: Solve for x
    x = 113,560,023.57/8,931.03
  6. Step 6: Final answer
    x = 12,715.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.