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Finding the Fourth Proportional to 9,345.02, 12,897.04 and 6,983.06

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Solution

The fourth proportional to 9,345.02, 12,897.04 and 6,983.06 is: 9,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.02 : 12,897.04 = 6,983.06 : x
  2. Step 2: Convert to fraction form
    9,345.02/12,897.04 = 6,983.06/x
  3. Step 3: Cross multiply
    9,345.02x = 12,897.04 × 6,983.06
  4. Step 4: Simplify right side
    9,345.02x = 90,060,804.14
  5. Step 5: Solve for x
    x = 90,060,804.14/9,345.02
  6. Step 6: Final answer
    x = 9,637.30

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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.