Home / 7,127.79-9,814.04-5,864.80

Finding the Fourth Proportional to 7,127.79, 9,814.04 and 5,864.80

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Solution

The fourth proportional to 7,127.79, 9,814.04 and 5,864.80 is: 8,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.79 : 9,814.04 = 5,864.80 : x
  2. Step 2: Convert to fraction form
    7,127.79/9,814.04 = 5,864.80/x
  3. Step 3: Cross multiply
    7,127.79x = 9,814.04 × 5,864.80
  4. Step 4: Simplify right side
    7,127.79x = 57,557,381.79
  5. Step 5: Solve for x
    x = 57,557,381.79/7,127.79
  6. Step 6: Final answer
    x = 8,075.07

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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.