Home / 9,345.28-12,897.36-6,983.32

Finding the Fourth Proportional to 9,345.28, 12,897.36 and 6,983.32

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Solution

The fourth proportional to 9,345.28, 12,897.36 and 6,983.32 is: 9,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.28 : 12,897.36 = 6,983.32 : x
  2. Step 2: Convert to fraction form
    9,345.28/12,897.36 = 6,983.32/x
  3. Step 3: Cross multiply
    9,345.28x = 12,897.36 × 6,983.32
  4. Step 4: Simplify right side
    9,345.28x = 90,066,392.04
  5. Step 5: Solve for x
    x = 90,066,392.04/9,345.28
  6. Step 6: Final answer
    x = 9,637.63

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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.