Home / 7,528.40-11,309.90-5,312.33

Finding the Fourth Proportional to 7,528.40, 11,309.90 and 5,312.33

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Solution

The fourth proportional to 7,528.40, 11,309.90 and 5,312.33 is: 7,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.40 : 11,309.90 = 5,312.33 : x
  2. Step 2: Convert to fraction form
    7,528.40/11,309.90 = 5,312.33/x
  3. Step 3: Cross multiply
    7,528.40x = 11,309.90 × 5,312.33
  4. Step 4: Simplify right side
    7,528.40x = 60,081,837.96
  5. Step 5: Solve for x
    x = 60,081,837.96/7,528.40
  6. Step 6: Final answer
    x = 7,980.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.