Home / 7,643.36-10,547.70-4,286.16

Finding the Fourth Proportional to 7,643.36, 10,547.70 and 4,286.16

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Solution

The fourth proportional to 7,643.36, 10,547.70 and 4,286.16 is: 5,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.36 : 10,547.70 = 4,286.16 : x
  2. Step 2: Convert to fraction form
    7,643.36/10,547.70 = 4,286.16/x
  3. Step 3: Cross multiply
    7,643.36x = 10,547.70 × 4,286.16
  4. Step 4: Simplify right side
    7,643.36x = 45,209,129.83
  5. Step 5: Solve for x
    x = 45,209,129.83/7,643.36
  6. Step 6: Final answer
    x = 5,914.82

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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.