Home / 9,319.03-12,873.16-7,428.13

Finding the Fourth Proportional to 9,319.03, 12,873.16 and 7,428.13

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Solution

The fourth proportional to 9,319.03, 12,873.16 and 7,428.13 is: 10,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.03 : 12,873.16 = 7,428.13 : x
  2. Step 2: Convert to fraction form
    9,319.03/12,873.16 = 7,428.13/x
  3. Step 3: Cross multiply
    9,319.03x = 12,873.16 × 7,428.13
  4. Step 4: Simplify right side
    9,319.03x = 95,623,483.09
  5. Step 5: Solve for x
    x = 95,623,483.09/9,319.03
  6. Step 6: Final answer
    x = 10,261.10

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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.