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Finding the Fourth Proportional to 9,866.03, 13,587.45 and 9,835.28

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Solution

The fourth proportional to 9,866.03, 13,587.45 and 9,835.28 is: 13,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.03 : 13,587.45 = 9,835.28 : x
  2. Step 2: Convert to fraction form
    9,866.03/13,587.45 = 9,835.28/x
  3. Step 3: Cross multiply
    9,866.03x = 13,587.45 × 9,835.28
  4. Step 4: Simplify right side
    9,866.03x = 133,636,307.30
  5. Step 5: Solve for x
    x = 133,636,307.30/9,866.03
  6. Step 6: Final answer
    x = 13,545.10

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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.