Home / 9,678.21-13,360.02-6,538.65

Finding the Fourth Proportional to 9,678.21, 13,360.02 and 6,538.65

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Solution

The fourth proportional to 9,678.21, 13,360.02 and 6,538.65 is: 9,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.21 : 13,360.02 = 6,538.65 : x
  2. Step 2: Convert to fraction form
    9,678.21/13,360.02 = 6,538.65/x
  3. Step 3: Cross multiply
    9,678.21x = 13,360.02 × 6,538.65
  4. Step 4: Simplify right side
    9,678.21x = 87,356,462.08
  5. Step 5: Solve for x
    x = 87,356,462.08/9,678.21
  6. Step 6: Final answer
    x = 9,026.10

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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.