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Finding the Fourth Proportional to 9,347.90, 12,901.01 and 6,985.94

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Solution

The fourth proportional to 9,347.90, 12,901.01 and 6,985.94 is: 9,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,347.90 : 12,901.01 = 6,985.94 : x
  2. Step 2: Convert to fraction form
    9,347.90/12,901.01 = 6,985.94/x
  3. Step 3: Cross multiply
    9,347.90x = 12,901.01 × 6,985.94
  4. Step 4: Simplify right side
    9,347.90x = 90,125,582.36
  5. Step 5: Solve for x
    x = 90,125,582.36/9,347.90
  6. Step 6: Final answer
    x = 9,641.27

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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.