Home / 9,323.90-12,864.08-5,290.07

Finding the Fourth Proportional to 9,323.90, 12,864.08 and 5,290.07

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Solution

The fourth proportional to 9,323.90, 12,864.08 and 5,290.07 is: 7,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,323.90 : 12,864.08 = 5,290.07 : x
  2. Step 2: Convert to fraction form
    9,323.90/12,864.08 = 5,290.07/x
  3. Step 3: Cross multiply
    9,323.90x = 12,864.08 × 5,290.07
  4. Step 4: Simplify right side
    9,323.90x = 68,051,832.59
  5. Step 5: Solve for x
    x = 68,051,832.59/9,323.90
  6. Step 6: Final answer
    x = 7,298.64

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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.