Home / 7,278.30-10,030.23-5,507.10

Finding the Fourth Proportional to 7,278.30, 10,030.23 and 5,507.10

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Solution

The fourth proportional to 7,278.30, 10,030.23 and 5,507.10 is: 7,589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.30 : 10,030.23 = 5,507.10 : x
  2. Step 2: Convert to fraction form
    7,278.30/10,030.23 = 5,507.10/x
  3. Step 3: Cross multiply
    7,278.30x = 10,030.23 × 5,507.10
  4. Step 4: Simplify right side
    7,278.30x = 55,237,479.63
  5. Step 5: Solve for x
    x = 55,237,479.63/7,278.30
  6. Step 6: Final answer
    x = 7,589.34

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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.