Home / 7,918.81-10,927.86-4,775.00

Finding the Fourth Proportional to 7,918.81, 10,927.86 and 4,775.00

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Solution

The fourth proportional to 7,918.81, 10,927.86 and 4,775.00 is: 6,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.81 : 10,927.86 = 4,775.00 : x
  2. Step 2: Convert to fraction form
    7,918.81/10,927.86 = 4,775.00/x
  3. Step 3: Cross multiply
    7,918.81x = 10,927.86 × 4,775.00
  4. Step 4: Simplify right side
    7,918.81x = 52,180,547.28
  5. Step 5: Solve for x
    x = 52,180,547.28/7,918.81
  6. Step 6: Final answer
    x = 6,589.44

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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.