Home / 12,637.32-17,430.06-9,279.12

Finding the Fourth Proportional to 12,637.32, 17,430.06 and 9,279.12

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Solution

The fourth proportional to 12,637.32, 17,430.06 and 9,279.12 is: 12,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.32 : 17,430.06 = 9,279.12 : x
  2. Step 2: Convert to fraction form
    12,637.32/17,430.06 = 9,279.12/x
  3. Step 3: Cross multiply
    12,637.32x = 17,430.06 × 9,279.12
  4. Step 4: Simplify right side
    12,637.32x = 161,735,618.35
  5. Step 5: Solve for x
    x = 161,735,618.35/12,637.32
  6. Step 6: Final answer
    x = 12,798.25

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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.