Home / 7,530.10-10,368.34-6,689.34

Finding the Fourth Proportional to 7,530.10, 10,368.34 and 6,689.34

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Solution

The fourth proportional to 7,530.10, 10,368.34 and 6,689.34 is: 9,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,530.10 : 10,368.34 = 6,689.34 : x
  2. Step 2: Convert to fraction form
    7,530.10/10,368.34 = 6,689.34/x
  3. Step 3: Cross multiply
    7,530.10x = 10,368.34 × 6,689.34
  4. Step 4: Simplify right side
    7,530.10x = 69,357,351.50
  5. Step 5: Solve for x
    x = 69,357,351.50/7,530.10
  6. Step 6: Final answer
    x = 9,210.68

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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.